a bug in minimize_constrained

asked 2015-01-02 12:52:51 +0200

for the following code:

f = lambda x: (1-x)^(1-x)
c_1 = lambda x: x - 0.5
c_2 = lambda x: - x + 0.99
minimize_constrained(f,[c_1, c_2],[0.75])

I get:


(I'm using Version 6.4.1).

Clearly, the result does not satisfy the constraints. Am I doing anything wrong? (find_minimum would not work for me, because I need to minimize a constrained 3-variable function -- this is just a 1D part of the function which results in a wrong anwer)

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