How can I replace some symbolic values in a matrix?
조회 수: 10 (최근 30일)
이전 댓글 표시
Hello!
I have a (symbolic) matrix A and its components depend on some symbolic variables (x, y and z). I want to replace the symbolic values with zero and I used subs function:
A = subs(subs(subs(A, x, 0), y, 0), z, 0);
and it doesn’t work (the replacement don’t take place) It doesn’t work either:
A = subs(A, x, 0);
What can I do to replace my symbolic variables with zero in this case?
Thanks!
댓글 수: 2
Dishant Arora
2014년 3월 4일
The replacement doesn't take place, then what do you get?? It should work fine.
채택된 답변
Walter Roberson
2014년 3월 4일
Did you assign a value to x, y, or z at the MATLAB level? If so then when it is the value of x, y, or z that is going to be used in the subs(), not the symbol. You might be able to use
subs(A, {sym('x'), sym('y'), sym('z')}, {0, 0, 0})
댓글 수: 3
추가 답변 (0개)
참고 항목
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!