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triggering on rising or falling edges?

• To: mathgroup at smc.vnet.net
• Subject: [mg73136] triggering on rising or falling edges?
• From: "dantimatter" <dantimatter at gmail.com>
• Date: Sun, 4 Feb 2007 07:29:21 -0500 (EST)

hello all,

is there a way for me to detect only the rising or falling edge of a
step function??  right now i'm using a conditional test that doesn't
differentiate between the system going from 0 -> 1 and 1 -> 0.  i'd
really like it if the system would only trigger on the 0 -> 1
transition.  does anyone know if this is possible??

thanks,
dan