10-14-2016, 03:41 PM
Post: #4
 Han Senior Member Posts: 1,882 Joined: Dec 2013
(10-14-2016 05:05 AM)compsystems Wrote:  CAS Settings: Principal OFF

solve( sin(x)= 0, x) ;
[enter] returns
{n_0*π} // ok

but
(Ans[1]|(n_0 = 1)) not evaluated, Why?

This may be due to the priority of the | (where) operator. The (literal) expression "Ans[1]" does not contain any references to n_0 so that substitution does nothing. After evaluation of Ans[1], you get the unevaluated result because the evaluation of n_0 = 1 happened before the evaluation of Ans[1].

There was an old thread discussing this a while back...

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 Messages In This Thread Answer - trigonometric equation - toya29 - 10-14-2016, 12:19 AM RE: Answer - trigonometric equation - Steve Keeley - 10-14-2016, 04:47 AM RE: Answer - trigonometric equation - compsystems - 10-14-2016, 05:05 AM RE: Answer - trigonometric equation - Han - 10-14-2016 03:41 PM RE: Answer - trigonometric equation - parisse - 10-14-2016, 05:03 PM

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