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MSPBlock[ {$$fun},
Integrate[ $$fun, x]
]
Page variables are Mathematica variables that you use to hold intermediate values. They are called page variables
since they are cleared when the page is finished. In the example below, the page variable tmp is used to hold the
expression that was entered into the text input field (which is held in an input variable called $$expr). Note the use
of the secure function, MSPToExpression, to convert the Mathematica expression from the input.
tmp = Null;
tmp = MSPToExpression[ $$expr] ;
If[ tmp =!= Null,
....
]
If you want your variable to persist from one page to another, you can declare it as a session variable. This, and
further details of variables are discussed in detail in
Advanced Topics: Variables
.
4.1.2 Coding in Pages
The purpose of webMathematica is to use Mathematica for web computation; a key part of this is placing Mathemat
ica code in your web pages. This is done with tags, as follows.
Integrate[ 1/(1 x^3),x]
Note that the Mathematica code will evaluate in the typical way for Mathematica and the result of the computation
will appear in the web page. You can use MSPFormat to change the way that the result is formatted, more informa
tion on formatting in webMathematica is found in Advanced Topics: Evaluation Formatting. An example of MSP
Format is shown below; this formats the integral into TraditionalForm using a GIF image to display the
result.
.
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