MATLAB: Positive number produced from calculation

mathematicsMATLAB

hi,i have a calculation that requires the output to be positive value. example: (|0.33-0.42|)=0.9 i tried using abs, but the result is not 0.9. matlab does not recognize the | symbol.im guessing i used abs wrong. can someone please show me how to do this?

Best Answer

 abs(0.33-0.42)

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MATLAB: How to solve three complex equations

Easy using matrix notation:

A = [1.46j,0.9j,-0.36j;0.36,-0.42,-1.345;0.9j,1.65j,0.42];
b = [1;0;1];
I = A\b
I =
  -0.0059 - 0.4749i %I1
   0.0079 - 0.3480i %I2
  -0.0040 - 0.0184i %I3

MATLAB: Can someone tell me what is wrong with this command

Transposing the last term is one problem.

This works:

twc= 35.74 + .6125 * temp -35.75 .* (abs(w)).^(0.16) + 0.4275 * temp .* (abs(w)).^(0.16);

I will leave it to you to decide if it gives the correct answer.

Best Answer

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MATLAB: How to solve three complex equations

MATLAB: Can someone tell me what is wrong with this command

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