Filling symbolic arrays while setting zeros when filling these arrays since useless variables
1 view (last 30 days)
Show older comments
Hello, below a code snippet to fill the symbolic matrixes FISH_BIG_GCsp and FISH_BIG_XC. Unfortunately, I am not filling entirely these 2 arrays and the execution takes a loo long time since I am taking into account unncessary symbolic values.
The ideal would be to have like I do for numerical arrays, that is to say, set zeros(31,31) and fill after the arrays with assignement : that allows me to not take into account (or at least simplify the execution time) the zeros.
But I don't know how to do the same it with symbolic arrays. If someone could help me, this would be fine
Here below the code snippet :
FISH_SYM = sym('xc_', [31,31], 'positive');
FISH_BIG_GCsp = sym('sp_', [31,31], 'positive');
FISH_BIG_XC = sym('xc_', [31,31], 'positive');
% Block bias spectro + pshot and correlations
FISH_BIG_GCsp(1:7,1:7) = FISH_GCsp_SYM(1:7,1:7)
FISH_BIG_GCsp(7:17,7:17) = FISH_GCsp_SYM(7:17,7:17)
FISH_BIG_GCsp(1:7,7:17) = FISH_GCsp_SYM(1:7,7:17)
FISH_BIG_GCsp(7:17,1:7) = FISH_GCsp_SYM(7:17,1:7)
% Block bias photo and correlations
FISH_BIG_XC(1:7,1:7) = FISH_XC_SYM(1:7,1:7)
FISH_BIG_XC(21:31,21:31) = FISH_XC_SYM(11:21,11:21)
FISH_BIG_XC(1:7,21:31) = FISH_XC_SYM(1:7,11:21)
FISH_BIG_XC(21:31,1:7) = FISH_XC_SYM(11:21,1:7)
% Block I.A and correlations
FISH_BIG_XC(18:20,18:20) = FISH_XC_SYM(8:10,8:10)
FISH_BIG_XC(1:7,18:20) = FISH_XC_SYM(1:7,8:10)
FISH_BIG_XC(18:20,1:7) = FISH_XC_SYM(8:10,1:7)
% Final summation
FISH_SYM = FISH_BIG_GCsp + FISH_BIG_XC
3 Comments
Answers (0)
See Also
Categories
Find more on Number Theory in Help Center and File Exchange
Products
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!