Going from structure to matrix

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Dion Richardson
Dion Richardson 2019-9-1
评论： madhan ravi 2019-9-1
So I'm trying to dynamically solve a matrix and have it so I can reuse it next loop however solve seems to return a structure that I can't dynamically cast back into a matrix.
The only code I've found to do it dynamically fails for reason "CELL2MAT does not support cell arrays containing cell arrays or objects."
%Matlab solver test
NumberOfMasses = 20;
lamda = sym('lamda',[NumberOfMasses NumberOfMasses]);
test = lamda * eye(NumberOfMasses,NumberOfMasses);
eqn = lamda * eye(NumberOfMasses,NumberOfMasses) == eye(NumberOfMasses,NumberOfMasses)*2;
ans = solve(eqn,lamda);
cell2mat(struct2cell(ans))%needs to be a matrix for next loop
Is there something I'm missing to Dynamically cast "ans" back to a matrix? (Preferably without writing code that dynamically builds strings and runs getfield() on the struct)

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madhan ravi
madhan ravi 2019-9-1
Why not use struct2array() ? Note: Don’t Name a variable named ans .
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Dion Richardson
Dion Richardson 2019-9-1
编辑：Dion Richardson 2019-9-1
I'm prototyping mathematical functions that I want to later run in C++. My issue is I'm not great at maths so I often make mistakes and change parts of my formula. This occasionally means that in some cases weird conditions come up. The loop time is about 20-30 seconds for some of my code (which is fine for prototyping).
Subs works perfectly! Thanks so much, never would've expected that to be the case.

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