Unary minus

Negate a signal.

  • signal
  • Gradara equations
  • 2 ports
BlockUnary minusKindunaryMinusLibraryMath

Description

Negates its input.

Example

Math functions Gain, absolute value, square root, sign, negation, and power of a sine; sine and cosine of time.

u = 2 sin(πt/2)Gain 0.5|u|√|u|sign(u)−uu²Timesin(t)cos(t)
In Gradara, select a Unary minus block and press F1, then choose Open example. It opens as a new model in My models, ready to run.

Also in this example:GainSine waveClockAbsSignSqrtSinCosPower

Ports

Inputs 1

  • usignal

    Input signal.

Outputs 1

  • ysignal

    Output signal, −u.

Equations

Modelica
y = −u

Implementation

The block’s Modelica model
y = -u;

See also

Select a block in Gradara and press F1 to open its page offline.