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Re: [Bug-glpk] expression following = has invalid type


From: Chris Matrakidis
Subject: Re: [Bug-glpk] expression following = has invalid type
Date: Sun, 11 Jun 2017 18:24:35 +0300

Dear Ahmed,

> If I may ask, how or at which point of the code shall I use the if statement
> which you proposed?

You can only do this with parameters and constant terms in the
constraints, and it only makes sense for the result of calculations
that may have accuracy issues. The only calculated value here is
cos(k*o), where when the (reduced) angle is either pi/2 or -pi/2, due
to rounding it is very unlikely that cos() will return zero. Since we
know these values should really be zero so we can set them directly
and avoid scaling problems.

Best Regards,

Chris Matrakidis

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