       Maximize Command - Problem

• To: mathgroup at smc.vnet.net
• Subject: [mg85814] Maximize Command - Problem
• From: Crazy Man <geller_gambit at hotmail.com>
• Date: Sat, 23 Feb 2008 04:25:33 -0500 (EST)

```Hello guys

I am trying to calculate the Max of a function using the Maximize command in the following way:

In:=Maximize[{fun, -Pi/2 < x < Pi/2 && -Pi/2 < y < Pi/2 && 0 < z < 2*Pi}, {x, y, z}]

where fun is:

In:=4*(a^2 + (b^2 + c^2 + d^2)(Cos[x])^2*(Cos[y])^2*(Cos[z])^2 + (b*Cos[x]*Cos[y]*Cos[z] + Cos[x]*Sin[y] + d*Sin[x])^2);

When I enter the command, it writes "Running..." for a while, then it puts as a result exactly what I write, just substitute "fun" for its function:

output=Maximize[4*(a^2 + (b^2 + c^2 + d^2)(Cos[x])^2*(Cos[y])^2*(Cos[z])^2 + (b*Cos[x]*Cos[y]*Cos[z] + Cos[x]*Sin[y] + d*Sin[x])^2),-Pi/2 < x < Pi/2 && -Pi/2 < y < Pi/2 && 0 < z < 2*Pi}, {x, y, z}].

I hope you can help me!

Thanks a lot

```

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