matlabFunction keeps running forever

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M Al Mamun
M Al Mamun 2020-7-24
评论： M Al Mamun 2020-7-25
Hello all,
I have a Jacobian matrix of 5420-by-5420 which contains symbolic expressions. Then I use matlabFunction to make the Jacobian a function handle. However, it keeps running forever. I don't know if it is freezed/hanged. The sample code is below.
jac=matlabFunction(Jacobian, 'Vars',{[h],[y],[x0],[Pload],[Qload]});
What is the reason that it keeps running? Could anyone please help me regarding this? Thanks in advance.
  2 个评论
Walter Roberson
Walter Roberson 2020-7-25
You are asking it to create more than 25 million elements... it is going to take a while.
M Al Mamun
M Al Mamun 2020-7-25
Yeah I understand now. matlabFunction roughly does 520 elements per second. So, it's gonna take around 15 hours for 5420*5420 = 29376400 elements. Thank you.

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