I'm trying to do a simple second derivative test on mathcad but the answer I always get is 0. I'm totally baffled now.
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Originally Posted by Turlock I'm trying to do a simple second derivative test on mathcad but the answer I always get is 0. I'm totally baffled now. How can we help you unless you post an actual problem?
I thought it would be a common error given the same result everytime. I defined my function V(x):=xxxxxx Then typed in the following and it gives 0 everytime. I managed to work it out by doing and typing x:=(Stationary point value) above it.
Here is how I do it. It takes a second function on my version.
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