eventup

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eventup

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Syntax

y = event(x);

Description

y becomes true when x is zero. This function forces the integration algorithm to find the exact point where the input crosses zero from a negative to a positive value. This is called a state event.

Examples

x = sin(time*omega +phi);

y = eventup(x);

Limitations

y must be a boolean, x must be an expression yielding a scalar.