Command Descriptions
TDS Family Oscilloscope Programmer Manual
2–167
Vertical
MATH<x>:DEFINE <QString>
MATH<x>:DEFINE?
<QString>
:
DEFINE
?
Space
MATH<x>
<QString> contains the mathematical expression. The expression can include
any amount of white space. Expressions can be either single or dual waveform
expressions. <src> and <function> elements are case independent.
The format for a single waveform expression is:
<function>(<source>
[,
<window>,
<scaling>,
<phase
suppression>])
The format for a dual waveform expression is:
<source><operator><source>
where:
<function> ::= INV | DIF | FFT | INT
H INVert (for invert): inverts the defined waveform.
H DIFferentiate (available with Advanced DSP Math only): takes the
derivative of the selected waveform.
H FFT (available with Advanced DSP Math only): provides an FFT of the
selected waveform. It uses the format: “FFT(<source>, <window>,
<scaling>, <phase suppression>)” where the window, scaling, and phase
suppression arguments in the parentheses are optional. You can specify these
arguments in any order.
<source> refers to a signal channel. Valid choices are: CH1, CH2, CH3, CH4,
REF1, REF2, REF3, or REF4.
(The TDS 410A does not include CH3 and CH4.)
<window> refers to an FFT window. Valid choices are: RECTangular,
HAMming, HANning, or BLAckmanharris.
<scaling> provides vertical scaling. Valid choices are: LOGrms, LINearrms,
DEGreesphase, or RADiansphase.
Group
Syntax
Arguments
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