'simplify' expression not efficient in Matlab2015
1 回表示 (過去 30 日間)
古いコメントを表示
I used Matlab 2015 to simplify an trigonometric expression, but in vain. It is not able to replace 1-sin^2() with cos^2(). If my memory serves correctly, Matlab2014 was able to do this very efficiently.
Is there a new function that does this in 2015, or we just lost a great feature.
Edit: Inserted Picture
0 件のコメント
回答 (1 件)
Walter Roberson
2016 年 2 月 21 日
syms theta
simplify( 1 - sin(theta)^2 )
2 件のコメント
Star Strider
2016 年 2 月 21 日
In R2015b:
syms theta
q1 = simplify(1 - sin(theta)^2, 'steps', 10)
q2 = rewrite(1 - sin(theta)^2, 'cos')
q1 =
cos(theta)^2
q2 =
cos(theta)^2
参考
カテゴリ
Help Center および File Exchange で Assumptions についてさらに検索
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!