CODEWITHSUNDEEP
matlaboctave
Hunar
Hunar

Reputation: 67

MATLAB: how to convert (sym) function to anonymous?

At University we use Matlab for numerical analysis and we studied some methods to find root, in newton's method we calculate derivative of a function but i wanted Matlab to do it for me, but when i take derivative, the function turns into (sym) and when i then pass values to it it says that it's dangerous to pass floating values, is there any way to convert it back to normal anonymous function? because that solves my problem :D 

syms x
f=@(x) x^2
df=diff(f(x),x)
f(1.2) #this is ok
df(1.2) #not allowed

I googled this alot but i only found how to convert the other way

Upvotes: 1

Views: 631

Answers (1)

Mendi Barel
Mendi Barel

Reputation: 3677

Simple, use 'matlabFunction':

syms x
f=@(x) x^2
df_=diff(f(x),x);

df=matlabFunction(df_);
df(1.2)

Upvotes: 3

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