Table of Contents

Find the slope or slew rate of a waveform.

slope(probe="p(d)" initial=value final=value begin=time end=time expression)

arg name | default | description |
---|---|---|

probe | required | The name of a probe to measure. |

initial | 0 | The initial value. |

final | 0 | The final value. |

begin | -infinity | The window begins at this time or frequency. |

end | +infinity | The window ends at this time or frequency. |

first | true | Find the first crossing in the window. (Cancels last.) |

last | false | Find the last crossing in the window. (Cancels first.) |

expression | false | The result is an unreduced expression. |

Ordinarily, the result is a number. If the probe is a voltage probe the units would be volts per second.

If the “expression” keyword is given the result is an unreduced expression.

measure sr = slope(probe="v(out)" initial=-2 final=2 last)

Find the slope (slew rate) for the last transition from -2 to 2, as a number.

sr= 30.15738K

measure sr = slope(probe="v(out)" initial=-2 final=2 last expression)

Find the slope (slew rate) for the last transition from -2 to 2, as an unreduced expression.

sr={( 2.--2.)/( 0.001066319- 933.6812u)}