famGetExpr

famGetExpr(
o_waveform
)
=> t_expr / nil

Description

Returns the expression of the specified waveform.

Arguments

o_waveform

ID of the waveform object whose expression is to be returned.

Value Returned

t_expr	Expression set to the specified waveform object.
nil	The expression of the specified waveform object cannot be returned because no expression has been set for the specified waveform.

Examples

The following example returns the expression set for the specified waveform object, waveform.

waveform=expr(x sin(x) linRg(0 20.0 .5))

; Creates a waveform object representing the waveform sin(x) from x=0.0 to x=20.0. The expression is evaluated at x=0.0, 0.5, 1.0, 1.5, ..., 20.0.

=> srrWave:0x327010b0

famGetExpr(waveform)

; Returns the expression for the specified waveform object, waveform.

=> 

expr(x 

    sin(x) 

    linRg(0 20.0 0.5)

)

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