how to count the number of terms in syms
3 views (last 30 days)
Show older comments
Hello!
I have a syms variable let's say A which is an addition of many terms say: A=a+b-c*a+a*b-d+... I want to count the number of added terms in A, how can I do that? my matlab version is 2012 by the way.
Thank you!
0 Comments
Answers (3)
Ameer Hamza
on 20 Oct 2020
Try this
syms a b c d
A=a+b-c*a+a*b-d+a*c;
num_terms = numel(regexp(char(A), '[+-]?'))+1;
Walter Roberson
on 20 Oct 2020
feval(symengine, 'nops', A)
In newer releases you can numel(children(A)) but that is several years after your version
KSSV
on 20 Oct 2020
You can get the number of sym variables present in the work spce using:
s = whos ;
iwant = nnz(strcmp({s(:).class},'sym'))
0 Comments
See Also
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!