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5 votes

Plotting minima of a mutivariable function

When the x is fixed, then we set {D[z, y] == 0, D[z, {y, 2}] >= 0} to get the local minimum. ...
cvgmt's user avatar
  • 77.7k
5 votes

Why can't the minimum value of this trigonometric function be calculated?

I think it's worth reporting to WRI. You ask "why it doesn't work," but that does not really appear to be important. I think your input syntax is wrong, but fixing the syntax does not fix ...
Goofy's user avatar
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3 votes

Find a parameter to return minimum of the function of several variables

The problem is unbounded (it's always important to check boundaries in optimization) so a global minimum exists in the limit as $x \rightarrow -\infty$: ...
ydd's user avatar
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3 votes

Find a parameter to return minimum of the function of several variables

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zeraoulia rafik's user avatar
3 votes

Plotting minima of a mutivariable function

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ubpdqn's user avatar
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2 votes

Why can't the minimum value of this trigonometric function be calculated?

The reduction to polynomials succeeds. ...
user64494's user avatar
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2 votes

ArgMax returns the input

Simplifying a bit: ArgMax[{Cos[x], Pi >= x >= 0}, x] yields the expected answer 0. Adding b back in doesn't have a max (because b can go off to infinity). ...
bill s's user avatar
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2 votes

Plotting minima of a mutivariable function

If I understand your question correctly, you want to plot z against x where z[x,y] has a minimum for given x. This can be done by noting that the partial derivative of f[x,y] relative to y by keeping ...
Daniel Huber's user avatar
  • 53.5k

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