problem with symbolic differentiation

2015 11 21
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更新时间：2015 11 21
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I have a problem with an implementation of a problem. Suppose I have a function and then apply symbolic differentiation
syms x;
syms y;
f= @(x,y) (x^2+x*y);
f_x= matlabFunction(diff(f,x)); %%turns a sumbolic expression into a function of 2 variable
f_y= matlabFunction(diff(f,y)); turns a symbolic expression into a function of 1 variable
How can I get a function of 2 variables in each case . maybe they are different ways of converting a symbolic expression into a function
Sincerely, Maria

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