Output numeric array from symbolic evaluation

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Rose Montgomery
Rose Montgomery el 13 de En. de 2021
Comentada: Star Strider el 13 de En. de 2021
I am trying to evaluate some symbolic functions at specific datapoints using nested loops and output the results to an array.
While the results in the output window are the numeric values, the array contents are not.
How can I correct this to get the numeric results in the array?
syms d1 d2 d3 ma mb x0 u3 u4;
ma = (d2-d1);
mb = (d3-d2);
x0 = ma*mb;
u3 = diff(x0,d3)
u4 = diff(x0,d2)
T = [];
next = 1;next1 = 1;next2=1;
for next2 = 1:35:5;
for next = 1:4;
%example values
b1 = 1*next/2;
b3 = b1+2;
for next1 = [0.05,0.1,0.4,0.65,0.9];
b2 = b1*next1;
z=vpa(subs(u3,{d1,d2,d3},{b1,b2,b3}),4)
g=vpa(subs(u4,{d1,d2,d3},{b1,b2,b3}),4)
T = [T;b1,b2,b3,z,g];
end
end
end
T
  1 comentario
Rose Montgomery
Rose Montgomery el 13 de En. de 2021
Editada: Rose Montgomery el 13 de En. de 2021
Follow up for Star Strider - now how do I get T into Excel? I tried array2table with no luck.
Never mind, I got it....use double to convert T from vpa to numbers

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Respuesta aceptada

Star Strider
Star Strider el 13 de En. de 2021
After the loops:
T = vpa(T)
creates the entire array as decimal fractions.
  5 comentarios
Rose Montgomery
Rose Montgomery el 13 de En. de 2021
Thanks again, Star Strider!!
Star Strider
Star Strider el 13 de En. de 2021
As always, my pleasure!

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