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Anonymous's picture

Dear Sir

I have difficulty in solving as following.

f(b) = cos(b)sin(r) -> f(b)/du(b) = -sin(b)sin(r)

deriative of f(b) is as above.. but how do i programming f(b)/du(b) = -sin(b)sin(r).. In opencascade, tell me how do i gain deriative...

help... please..

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