# Negate

[Negate] command negates the direction of curves by reversing the parameter span of the curves.

## Step

For the prompt "Specify curves", select an arbitrary number of curves to negate the directions. Pressing `Enter` key terminates the curve selection.

When the curve selection is finished, all of the curves will be negated. If the curve directions are displyed using [Direction Display] command, the reverse operation can be confirmed.