inttrap

inttrap — integration of experimental data by trapezoidal interpolation

Calling sequence

v = inttrap([x,] s)

`x`	: vector of increasing x coordinate data. Default value is `1:size(y,'*')`
`s`	: vector of y coordinate data
`v`	: value of the integral

computes :

Where f is a function described by a set of experimental value:

s(i)=f(x(i)) and x0=x(1), x1=x(n)

Between mesh points function is interpolated linearly.



t=0:0.1:%pi
inttrap(t,sin(t))