Why matlab not simplify my answer?

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Milan Sumegi
Milan Sumegi 2018-12-15
评论： madhan ravi 2018-12-15
Hello can you hel me please
Here is my script:
u=symunit;
L= input('Lenght of where you would like to measure the deflection in meter: ')*u.m
L=unitConvert(L,u.mm);
W=8500*u.N;
E=42000 *u.N/u.mm^2;
I=10*(10^6)*u.mm^4;
D=(W*L^3)/(8*E*I)
and the answer is :
D =
(53125/21)*[mm]
How can I get matlab to simplify this for me? Thanks

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madhan ravi
madhan ravi 2018-12-15
D=vpa((W*L^3)/(8*E*I))

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