Trouble with symbolic integrals

syms x;

f = exp((x^2-1)/2)/(1-x^2)^0.5;

int(f,-1,1)

%% Matlab does not solve that integral

% The output is:

% ans =

% int(exp(x^2/2 - 1/2)/(1 - x^2)^(1/2), x, -1, 1)

Answer 1

[Star Strider]

Since the desired result is numeric, use vpaintegral —

syms x;
f = exp((x^2-1)/2)/(1-x^2)^0.5;
int_f = vpaintegral(f,-1,1)

int_f = 

2.48505

.