Release Notes для Mathcad 8 Выпуск Стандарт

Это описание содержит основную информацию о новшествах в Mathcad 8. 

Содержание

1.	Системные требования
2.	Состав установочного компакт диска Mathcad
3.	Установка
4.	Обновелние документации
5.	Использование электронных книг в Mathcad 8
6.	Заметка о компонентах
7.	Изменения в меню после Mathcad 6
8.	Устранение неполадок
9.	Где получить более подробную информацию

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1. Системные требования

•	Pentium 90 IBM или совместимый с ним компьютер.
•	Устройство чтения CD-ROM.
•	Windows 95 или лучше или Windows NT 4.0 или лучше.
•	Не менее 16 Мб оперативной памяти. 32 Мб рекомендуется.
•	Не менее 75 Мб дискового пространства для обычной установки. 26 Мб для минимальной установки.
•	VGA или лучше графический адаптер и монитор. Super VGA желательно. 256 цветов дисплей. Желательно больше 256.
•	Подключенный Интернет с настроенным Браузером
•	Excel компонент в Mathcad-е требует Excel для Windows 95 version 7.0 или лучше. Axum компонент требует Axum 5.0c (дата 5/18/97) или лучше. S-PLUS компонент требует S-PLUS 4.5 или лучше.
•	Желательно для полной совместимости использовать Internet Explorer 4.0 или лучше. Смотри следующий раздел для более детальной информации.
•	OpenGL Графические карты работают гораздо быстрее с 3D графикой.

2. Состав установочного компакт диска Mathcad

Mathcad CD содержит:
•	Инсталяционную версию, on-line Help и файлы Ресурс-Центра. Запустите SETUP.EXE из директории MathCada (см раздел 3, ниже). 
•	Adobe Acrobat Reader 3.0 инсталяционную версию (\DOC\AR32E301.EXE).
•	Mathcad Руководство Пользователя и Mathcad Инструкция по применению файлы в формате Adobe Acrobat (требуется Adobe Acrobat Reader 3.0 или Exchange 3.0, или лучше). Посмотри в директории \DOC.
•	Internet Explorer 4.0, рекомендуется для корректной работы on-line Help-а. Чтобы установить IE 4.0, запустите Ie4Setup.EXE из директории \IE с CD.
•	Practical Statistics, Real World, Personal Finance, и Topics in Math электронные книги. 

3. Установка

Before upgrading
If you are upgrading from an earlier version of Mathcad to Mathcad 8, make sure you still have the earlier version of Mathcad installed on your system. Alternatively, make sure you have the serial number or the installation media for the earlier version. The upgrade installation first attempts to locate the earlier version on your system before it installs Mathcad 8, and it installs Mathcad 8 over the earlier version by default. You may choose another location during the installation if you desire. If the installation does not find the earlier version of Mathcad installed, it prompts you to enter the serial number or insert the installation media.

Note to beta testers
If you installed a beta version of Mathcad 8, you should first uninstall the beta version before installing Mathcad 8. To uninstall Mathcad 8:

•	From the Start menu, choose Settings=>Control Panel=>Add/Remove Programs.
•	Select Mathcad 8 from the list of programs.
•	Click Add/Remove. If you are asked to remove shared files, click “No to all.”

General installation instructions
You should first read and accept the license agreement found in the beginning of the Mathcad User’s Guide. Then install Mathcad 8:
•	Insert the CD into your CD-ROM drive. The first time you do this, the CD will automatically start the installation program. 
•	If the installation program does not start automatically, you can start it by choosing Run from the Start menu and typing D:\SETUP (where "D:" is your CD-ROM drive). Click OK.
•	When prompted, enter your product serial number, which is located on the back of the CD case.
•	Follow the remaining on-screen instructions.

Typical vs. custom vs. compact installation
The custom installation gives you the option of installing the following:

•	Mathcad Program Files: all the files necessary to run Mathcad and its on-line Help system.
•	Resource Center Files: reference files consisting of tutorials, reference tables, discipline-specific Mathcad files, and in-depth guides to topics such as solving in Mathcad. If you choose not to install the Resource Center files, you must have the CD available when you choose Resource Center from the Mathcad Help menu in order to access the Resource Center contents.

The compact installation installs the Mathcad program files, but not the Resource Center files. If you choose a compact installation, you must have the CD available when you choose Resource Center from the Mathcad Help menu in order to access the Resource Center contents.

The typical installation (the default) installs all of the Mathcad program files and the Resource Center files. 

4. Обновелние документации

The following are corrections to the printed documentation for Mathcad. Consult the on-line Help in Mathcad as well as the Adobe Acrobat files provided in the DOC folder on your installation CD for the most recent documentation. See README.RTF in the DOC folder for more information on using the Adobe Acrobat files.

Mathcad User's Guide
Page 29 - The bar graph shown is not correct. You should see negative bars on the graph.

Page 193 - Although the text indicates you can override Autoselect only in Mathcad 8 Professional, you can do so in Mathcad 8 Standard Edition as well. However, the Advanced Options and Quadradic pop-up menu choices are available only in Mathcad Professional.

Page 178 - The functions combin and permut accept integer values for k and n such that 0 is less than or equal to k and k is less than or equal to n.

Page 197 - The bspline function is available only in Mathcad 8 Professional.

Page 255 - Graphing multiple 3D plots is supported only in Mathcad 8 Professional.

Page 268 - The note on page 268 implies that when you create a single contour plot, you can see contour plots on planes other than the x-y plane using options in the 3D Plot Format dialog box. Viewing contours on planes other than the x-y plane is only possible, however, when you have a contour plot and at least one other 3D plot on the same graph in Mathcad Professional.

Page 304 - When you type the example shown in Figure 15-2, the variable x appears in red, indicating it is undefined. However, the example is still valid. Since the program in the example is evaluated symbolically, x does not need to be defined. The fact that x turns red does not affect the program.

Page 321 - The S-PLUS Script component is supported in Mathcad 8 Standard Edition as well as in Mathcad 8 Professional.

Mathcad Reference Manual
Page 10 - The bspline function is available only in Mathcad 8 Professional. Also, the following information is missing from the description of the arguments vx and u for the bspline function: 1.) The first element of vx must be greater than or equal to the first element of u. 2.) The last element of vx must be less than or equal to the last element of u. 

Pages 36, 62, 68, 71 - Although the text indicates you can override Autoselect only in Mathcad 8 Professional, you can do so in Mathcad 8 Standard Edition as well. However, the Advanced Options and Quadradic pop-up menu choices are available only in Mathcad Professional.

Page 98 - The description for the argument p in the rgeom function is incorrect. p cannot be equal to 1. Therefore, 0<p<1.

5. Использование электронных книг в Mathcad 8

Mathcad Electronic Books created for earlier versions of Mathcad operate correctly in Mathcad 8. Note, however, the following:

•	Open an Electronic Book by choosing Open from the File menu and locating the corresponding HBK file for the Book, or choose Open Book from the Help menu. Titles for Electronic Books you have installed in the HANDBOOK folder of your Mathcad installation folder appear at the bottom of the Help menu, and you can open an Electronic Book by selecting it directly from this list. If you are upgrading from an earlier version of Mathcad and installing Mathcad 8 in a new location, be sure to copy your current HANDBOOK folder to the new location to have easy access to your Electronic Books.
•	All Electronic Books open inside a small, custom window with an Electronic Book toolbar like the one for the Mathcad 8 Resource Center. You may open as many Electronic Books as you like at any time, each in its own window. The window is easily resized for optimal viewing of the Electronic Book.
•	The "paste region" and "paste file" region actions are no longer supported. This change affects The CRC Materials Science and Engineering Handbook and The CRC Handbook of Chemistry and Physics.
•	Commands for annotating the Electronic Book are available on the Book menu inside the Electronic Book window.
•	The Mathcad-Apollonius DDE links in Parametric Sketching for Engineering Analysis with Mathcad and Apollonius are not supported.

6. Заметка о компонентах

Mathcad 8 uses "components" to communicate and exchange data with the applications Axum, Excel, and S-PLUS as well as external data sources. Components are specialized OLE objects that not only link to external data sources and applications but also allow you to compute with these sources or applications within your Mathcad worksheet.

Using the Axum, Excel, MATLAB, and S-PLUS components
To use the Axum, Excel, or S-PLUS component in Mathcad:

•	You must have a supported version of the corresponding application on your system: Axum 5 (dated 5/18/97 or later,) Excel for Windows 95 or later, or S-PLUS 4.5 or higher. 
•	You must have sufficient memory on your system to run both Mathcad and the other application(s). In practice, we recommend a minimum of 32 megabytes of RAM.
•	You may pass only scalars, vectors, or two-dimensional arrays as inputs to the Axum or Excel, component and pass scalars, vectors, or two-dimensional arrays back from Excel. 
•	Worksheets that include components can be shared with others; however, the components will not compute unless the person receiving the worksheet has all the necessary applications installed on his or her system.

7. Изменения в меню после Mathcad 6

If you're upgrading to Mathcad 8 from Mathcad 6, you'll notice that we've reorganized the menu commands to make them more intuitive. The View, Insert, and Format menus are new, and the Text and Graphics menus have been removed. Some other specific changes include:

•	File/Export Worksheet has been removed; you may now save a Mathcad worksheet in RTF format using the File/Save As command.
•	File/Open URL has been removed. To open a file via its URL, choose Resource Center from the Help menu and click the second button from the left (the globe) on the toolbar, and enter the URL. 
•	File/Insert has been removed. Copy and paste the regions of a worksheet to insert them.
•	The File/Get From Notes and File/Save to Notes commands have been removed. This functionality is no longer available.
•	File/Save Configuration and File/Execute Configuration have been removed. You can now save preferred worksheet settings by creating a template.

•	Edit/Redo has been added to let you reapply an edit undone by Edit/Undo.
•	Edit/Delete replaces Edit/Clear.
•	Edit/Regions/View Regions is now a command on the View menu. 
•	Edit/Regions/Select All is directly on the Edit menu.
•	Edit/Regions/Separate, Edit/Regions/Align Regions, and Edit/Headers/Footers have been moved to the Format menu. 
•	Edit/Insert Pagebreak and Edit/Link have been moved to the Insert menu. Links are now called Hyperlinks.
•	Edit/Include is now Insert/Reference.
•	Edit/Insert (Delete) Blank Lines has been removed. Insert or delete blank lines by clicking in the worksheet with the right mouse button and choosing Insert Lines or Delete Lines from the pop-up menu.

•	The Text menu has been deleted and the available commands have been distributed among other menus. Insert a text region into your worksheet as before using the double-quote key " or choose Insert/Text Region. The Text/Create Text Paragraph command is no longer available; only text regions can now be created. Text/Embed Math has been moved to Insert/Math Region. Text/Change Font and Text/Change Paragraph Format have been moved to the Format menu. Text/Check Spelling has been moved to the Edit menu.

•	The Math/Matrices, Math/Choose Function, and Math/Units/Insert Unit commands have been moved to the Insert menu.
•	The Math/Units/Change System of Units, Math/Units/Dimensional Format, Math/Randomize, and Math/Built-in Variables commands have been reorganized under the Math/Options pick.
•	Math/Numerical Format is now Format/Result.
•	Math/Font Tag is now Format/Equation.
•	Math/Highlight Equation has been removed. To highlight an equation, click on it, choose Properties from the Format menu and click “Highlight Region.”
•	Math/Change to Greek Variable is no longer available. Change a character behind the insertion point in math regions to Greek by pressing [Ctrl]G.

•	The Graphics menu has been deleted and the available commands have been distributed among other menus. Use the Insert/Graph pick to insert available built-in two- and three-dimensional plot operators, and use the Insert/Picture command to insert a picture operator. Format a selected plot or picture by using the Format/Graph or Format/Picture command, or by double-clicking on the plot or picture. For X-Y and Polar Plots, Trace and Zoom are available as commands on Format/Graph as well as buttons on the Graph toolbar.

•	The available Symbolics menu commands are identical to those in Mathcad PLUS 6.0 but have been renamed or reordered for clarity. The Differentiate on Variable, Integrate on Variable, Solve for Variable, and Substitute for Variable commands have been grouped under the Symbolics/Variable command. Symbolics/Derivation Format has been renamed Symbolic/Evaluation Style and Symbolics/Derive in Place is now part of the Evaluation Style dialog box.

•	Most worksheet management commands formerly on the Window menu have been moved to the View, Insert, and Format menus. Window/Zoom, Window/Refresh, and the toolbar hiding and viewing commands have been moved to the View menu. The Window/Animation commands have been renamed View/Animate and View/Playback. The Window/Change Colors command has been moved to the Format/Color command.

•	The Books menu has been removed. You can open an Electronic Book by choosing Open Book from the Help menu. To access the book annotation commands, choose them from the Book menu in the Electronic Book window.

•	The Help menu offers picks for Mathcad Help, the Resource Center, and Using Help. The Desktop Reference and Tutorial Electronic Books have been integrated into the Resource Center, the Sampler Electronic Book has been removed, and Technical Support Help has been removed.

8. Устранение неполадок

Illegal context error in a function definition
Definitions such as f(x):=j+x where j is a range variable are no longer supported. They issue the error “Illegal context. Press F1 for help.” If you created a worksheet in an earlier version of Mathcad which contains such definitions, consider redefining the function so that the range variable is an argument. For example, f(x):=j+x can become f(x,j):=j+x.

Keystrokes differ from previous versions
When you create a new worksheet in Mathcad 8, the keystrokes for common tasks, by default, are the Windows standard keystrokes, rather than the ones used in earlier versions of Mathcad. For example, the Windows standard keystrokes are [Ctrl] P for Print (not the Greek letter p) and[Ctrl] Z for Undo (not infinity.

If you prefer to use the keystrokes used in earlier versions of Mathcad, choose Preferences from the View menu and remove the check next to “Use Standard Windows Shortcut Keys.”

The following keystrokes change depending on whether you use Windows standards:

Operation	Windows standard	Classic Mathcad
Print	Ctrl P	None
Undo	Ctrl Z	Infinity
Redo	Ctrl Y	None
Find	Ctrl F	Ctrl F5
Replace	Ctrl H	Shift F5	
P	Ctrl Shift P	Ctrl P	
Insert Function	Ctrl E	Ctrl F
Infinity	Ctrl Shift Z	Ctrl Z	
Select All	Ctrl A	None
Math in text	Ctrl Shift A in text	Ctrl A in text
Left limit	Ctrl Shift A	Ctrl A
Insert page break	Ctrl Enter	None
Right limit	Ctrl Shift B	Ctrl B
Chemistry mode	Ctrl Shift J	Ctrl Shift O
Move regions up	Delete key	Ctrl H
Exit a text region	Ctrl Shift Enter	Shift Enter
New line in text paragraph	Shift Enter	None
Mode for typing symbols in a name	Ctrl Shift K	Ctrl Shift P

3D graphs that require more than one argument
Since Mathcad 8 supports multiple 3D plots per graph, there must be parentheses around the arguments for a single three-dimensional plot that requires more than one argument. For example, a 3D scatter plot requires three arguments separated by commas. In Mathcad 8, these arguments must be enclosed together in a set of parentheses. If you open a worksheet containing a 3D scatter plot created in an earlier version of Mathcad, you’ll see parentheses around the arguments.

Multiple vector field plots
Although you can create a vector field plot and other 3D plots on a single graph, you cannot create more than one vector field plot on a single graph.

3D graphs disappearing
If 3D graphs disappear as you scroll down in a worksheet and you have a Diamond Fire GL 1000Pro video driver or similar, visit www.diamondmm.com on the Web and verify that you have the latest version of the driver as well as the latest version of the BIOS.

Scalar results enclosed in parentheses
A 1x1 array may occasionally be returned as a result. In Mathcad 8, such an array appears as a number enclosed in parentheses. 

Infinite integrals
Mathcad requires any function being integrated over an infinite limit to be real.

Variable names and SI units
The SI unit system is the default unit system in Mathcad 8, giving you access to standard SI unit names (including single-letter abbreviations such as A for ampere, N for newton, etc.). Take care when defining variables in Mathcad worksheets not to redefine built-in unit names in the SI system. Choose Unit from the Insert menu to browse a list of units in the default unit system of your worksheet.

Outdated functions
You should avoid using the functions READ, WRITE, APPEND, and until. Although they are supported in Mathcad 8, their use is not recommended and they may not be supported in future versions. Use the File Read/Write component and the APPENDPRN function instead. The until functionality is best implemented using programming in Mathcad Professional.

Accessing the Collaboratory
To access the Collaboratory in Mathcad 8, choose Resource Center from the Help menu to open the main page of the Resource Center. Then click on the Collaboratory button. 

Note that the Collaboratory may not work properly at this time if you have installed the beta version of Internet Explorer 5.0.

Multiple uses for quote key
The quote (") has many uses in Mathcad 8. In a blank space in the Mathcad worksheet it begins a text region. If you have selected a math expression, it introduces the complex conjugate operator. In a math placeholder it begins a string variable.

Importing MATLAB MAT files
If you use MATLAB 5, you must save your MATLAB data/environment (MAT) files in version 4 format before importing them with either the File Read/Write component or the Input component. MATLAB 5 supports the “-v4” switch on the save command to save a MAT file in version 4 format. See the MATLAB documentation for details.

MATLAB allows you to save a "sparse array" (an array containing rows or columns of zeros) using special sparse array notation. Mathcad and do not convert the sparse array notation if you import the array with either the File Read/Write component or the Input component; they read in the array exactly as it is stored in the file.

Using the Excel component with a worksheet containing a macro
If you insert the Excel component by referencing an Excel file containing a macro, you may encounter an “OLE timeout” dialog box. To continue loading the file, click “Yes” on the dialog box.

Exporting to dBase files
When you export data from Mathcad to a dBase file, the values are truncated to four decimal places. 

Importing data files containing text
If you use the File Read/Write component to import data from a data file whose first row contains text, Mathcad will import the values in the file to 5 decimal places.

Error "Unable to set the Value property of the Range class" when using the Excel component 
If you use the Excel component in Mathcad and have Excel for Windows 95 installed, you will not be able to pass more than approximately 1800 values to the Excel component.

Accumulate tab in output table properties
In Mathcad the Accumulate tab accessible from the Properties selection of the output table pop-up menu is not implemented. 

Unable to print
If your printer has an extremely long name, you could experience a system error when printing from Mathcad. Try shortening the name of the printer icon in the Control Panel to prevent this from happening.

Black boxes appear when printing
If you print a worksheet containing an operator such as a summation, you may see black boxes on the print-out if you are printing to a PostScript printer. To correct this, use a non-PostScript printer driver that is compatible with your printer.

Text doesn't appear in Print Preview
Gray and silver text does not appear on the screen when you choose Print Preview from the File menu but it will print.

Saving Mathcad 8 worksheets as Mathcad 6 or 7 worksheets
When you save a Mathcad 8 worksheet as a Mathcad 6 or 7 worksheet, regions or features that won't work in Mathcad 6 or 7 are saved as bitmaps. However, these bitmaps may not closely resemble the regions or features if you save the worksheet using 256 colors.

Opening Mathcad 6 worksheets in Mathcad 8
You can open any Mathcad 6 for Windows or Macintosh worksheet in Mathcad 8. In general, the worksheet will maintain its previous appearance. However, live symbolic keywords are converted into the new symbolic keyword operator in Mathcad, and file associations are translated into full pathnames. File variable arguments appear as strings inside data file functions such as READPRN and WRITEPRN. 

File Write component
The Overwrite and Properties options on the pop-up menu for the File Write component are not supported.

Backtracking while browsing the Web
If you jump to a document from a framed page while browsing the Web using the Resource Center, pressing the Back button brings you to the previously loaded page instead of the framed page.

Inserting a picture
In Mathcad 7, it was possible to choose Picture from the Insert menu and enter the name of a BMP file such as bird.bmp directly into the placeholder. The argument bird.bmp was not entered as a string. This kind of argument is no longer supported in Mathcad 8. If the argument is a filename, it must be typed as a string. For example, enter “bird.bmp” in the placeholder.

Complex results from the root function
You must provide a complex guess value in order for the root function to return a complex result.

Difficulties creating an animation or inserting a component
You could experience system difficulties while creating an animation or inserting a component under Windows NT if your TEMP variable points to a folder that does not exist. Make sure the TEMP variable points to an existing, writable folder. To set this variable under NT 4.0, click on My Computer with the right mouse button, choose Properties, and click on the Environment tab. 

Difficulties in the on-line Help
If you run the Mathcad Resource Center from the CD or if you have never installed Internet Explorer 4.0, the QuickSheet Examples in the Mathcad Help may not launch automatically. To open the QuickSheet examples, open the Resource Center, click on QuickSheets, and use the Search button in the toolbar to search on the topic you were looking at in the Help.

If you have never installed Internet Explorer 4.0, you may encounter other difficulties in the on-line Help. The Related Topics buttons may not appear until you resize the window. For best performance of the on-line Help, we recommend you install Internet Explorer 4.0 so that you have the latest technology available, but you do not need to use IE 4.0 or have it appear on your desktop. To install IE 4.0, run Ie4Setup.EXE in the \IE folder on the Mathcad CD.

Personal QuickSheets
If you created Personal QuickSheets using Mathcad 6 or 7, you can open them in Mathcad 8 by choosing Open from the File menu, selecting the Mathcad 8 folder, and typing *.MCU in the File Name. Your Personal QuickSheet is a file with the MCU extension.

Mathcad-Axum Link
To use the Mathcad-Axum link with Mathcad 8:

•	Install Axum 5.0c (dated 5/18/97 or later)
•	Refer to the chapter "Advanced Computational Features" in the Mathcad User's Guide for information on the Axum component, which allows you to use the Axum component. Note that information about the link in the on-line Help in Axum may be out of date.
•	Refer to the on-line Help in Axum for information on the kind of data required for the graphs you wish to create.

9. Где получить более подробную информацию

In the US and Canada
•	Technical Support information on the Web:  visit http://www.mathsoft.com/support/mcadmenu.htm
•	24-hour automated support and faxback system: Call 617-577-1778
•	E-mail support@mathsoft.com
•	Fax 617-577-8829
•	Phone 617-577-1778  (5 days a week, 9AM-5:30PM EST)

Outside the US and Canada
•	Technical Support information on the Web:  Visit http://www.mathsoft.com/support/mcadmenu.htm
•	Phone your local support center (refer to the technical support card enclosed with the package for specific information).
•	E-mail help@mathsoft.co.uk
•	Fax +44 (0)1276 451224

On-line information
•	The Resource Center inside Mathcad 8 contains a wealth of information about Mathcad including a variety of tutorials, Reference Tables, sample worksheets, QuickSheet templates with built-in formulas, and in-depth instructional material on Mathcad features such as equation solving. Choose Resource Center from the Help menu.
•	The Mathcad Collaboratory is a free Internet forum for sharing ideas and files with other Mathcad users, accessible from right within Mathcad. Click on the Collaboratory button from the main page of the Resource Center.
•	On-line Help is available in Mathcad. 
•	Sample Mathcad files that use components are provided in the \SAMPLES folder in the location where you installed Mathcad. See README.RTF in that folder for more information on the sample files.
•	Visit the MathSoft World Wide Web site for sample Mathcad worksheets, updates, and support information. Click the mathsoft.com button in the Mathcad Resource Center, or visit http://www.mathsoft.com/ with your favorite browser.

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Mathcad, Axum, and S-PLUS are registered trademarks and Electronic Book, QuickSheets, and Collaboratory are trademarks of MathSoft, Inc.

Microsoft and Windows are registered trademarks of Microsoft Corp. Windows NT is a trademark of Microsoft Corp.

MATLAB is a registered trademark of The MathWorks, Inc.

Adobe and Acrobat are trademarks of Adobe Systems Incorporated which may be registered in certain jurisdictions.

OpenGL is a registered trademark of Silicon Graphics, Inc.

Other brand and product names referred to are trademarks or registered trademarks of their respective owners.

09/04/98

Для профессиональной и коммерческой деятельности настоятельно рекомендуем приобрести лицензионную версию MathCad 8.0!