On 06/10/2011 07:56 PM, Stefan Karrmann wrote:
Dear all,
we can help ourselves in some cases by:
sign x == (abs x)/x
H x == (1 + sign x)/2
step (a,b,x) == (H(x-a)) * (H(b-x))
The drawback is that we get a 'Division by zero'.
Show a short program that demonstrates this error message. Only then is
somebody able to help.
Ralf
PS: "sign" is already built-in. Try out
)display op sign
.
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