Math Functions Dialog

Use the Math Functions dialog box to edit and manage math functions.

The upper section of the Math Functions dialog box contains a list of currently defined math functions and buttons to manage these functions. The lower section of the Math Functions dialog box contains the math function editor.

Delete	Deletes the currently selected math function.
Save as...	Saves the current math function to disk. Math functions files have the extension .MTHX
New	Creates a new math function.
Recall...	Used to recall saved math functions with the file extension .MTH or .MTHX.
Duplicate	Creates a copy of the selected math function.

Edit math functions
Name	Specifies the name of the math function.
Enabled	Specifies whether the math function is enabled and is shown in the list of trace data.
Expression	Shows the current expression for the selected math function. Use the Data, Functions, and Operators buttons to build a math function or type the math expression directly in the Expression box. See Creating Math Functions for more information about expressions.
Description	Writes a description for the selected math function.

Data	Opens a list of trace data, which chooses the operand for your math function. The operand is any valid trace data or the contents of a data register. See the Math Function Reference for more information.
Functions	Opens a list of available math functions such as FFT Fast Fourier Transform: A mathematical operation performed on a time-domain signal to yield the individual spectral components that constitute the signal. See Spectrum., log, or square root. Hovering over a function will provide a brief description about the function. See the Math Function Reference for more information.
Operators	Opens a list of available operators (+, -, *, /) which performs addition, subtraction, multiplication, and division, respectively. See the Math Function Reference for more information.

Apply	Applies the changes to the math function. Any trace that uses the math function is updated when the Apply button is clicked.
Cancel	Cancels any changes that have been made to the current math function.
Check Syntax	Checks the syntax of your math function and reports an error when the syntax is invalid. When a math function is built using the Data, Functions, and Operators buttons, the syntax of your math function should be correct. However, when the contents of the Expression box are manually modified, an invalid math function may be created. For information about math function syntax, see Creating Math Functions.