issue with sequaring sec of matrix

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Abdulaziz
Abdulaziz 2013-11-18
回答： Walter Roberson 2013-11-18
Dear all
Please I need help with an issue of secuaring every sec(Phi)which i need in a part of my code
Phi=0:(2*pi)/360:(340*pi)/180;
ff=sec(Phi).^2
the resulted matrix has all its elements zeros that multiplied in e+33
your help is higly appreciated
  2 个评论
Walter Roberson
Walter Roberson 2013-11-18
Your code would probably be clearer if you used linspace() instead of an increment.
Are you trying to work in degrees or radians? What is your maximum value in radians ?
Abdulaziz
Abdulaziz 2013-11-18
I want to work in radians and the angle Phi varies from zero to 340
I am trying to find the x values where x=17.5/cos^2(phi) .All the values of x I got are zeros which is wrong but the first element of x was right (17.5)
Thank you for your concern

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回答（1 个）

Walter Roberson
Walter Roberson 2013-11-18
At the command prompt give the command
format long g
and then have another look at the values in ff.

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