matlab - evaluate numeric part of a "sym" variable -


i need evaluate numeric part of "sym" variable in matlab(something "evalf" function in maple) instance have sym variable :

(12*(51*ee*ii - 8*39^(1/2)*ee*ii))/(aa*ll^4*ro)

"evalf" in maple gives me 12.48019224*ee*ii/(aa*ll^4*ro), there way in matlab?

i think you're looking vpa (variable precision arithmetic) function

syms ee ii aa ll ro y = (12*(51*ee*ii - 8*39^(1/2)*ee*ii))/(aa*ll^4*ro) vpa(y)

which returns

ans =  (12.48019215375377223869826038978*ee*ii)/(aa*ll^4*ro)

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