A general question in mathematics

    Hi
    Please help me do the following math operation and apply every array of a vector (x) on it:

    x=randn(1,1000);

    diff(log(quad(@(w)exp(ixw-abs(w)^2,-500,500))) {I use quad because the function is not closed formula)

    in the other words i want to integral from this function [ixw-abs(w)^2]dw

    The phrase is derived in terms of X,

    after that put logarithm on it(Ln),

    next differentiation with respect to x,

    then placed array of vector x individually to the result,

    best regards

Answer 1

[Andrew Reibold]

 Q = quad(FUN,A,B) tries to approximate the integral of scalar-valued
    function FUN from A to B to within an error of 1.e-6 using recursive
    adaptive Simpson quadrature.

Example: Q = quad(@(x)myfun2(x,5),0,2);

Where are your A and B Parameters?

Are -500 and 500 supposed to be A and B? You have them trapped inside of exp(ixw-abs(w)^2,-500,500) so that means you don't have enough input arguments