trapz or integral which one is more accurate?

clc
clear
close all


x = linspace(0,100);
y = x.^cos(x);
plot(x,y);
a = trapz(x,y);
y = @(x)x.^cos(x);
b = integral(y,0,100);
c=a-b;
 

Answer 1

[Alan Stevens]

integral is more accurate here. Try

x = linspace(0,100,1000);

and you will find the trapz result reduces to get much closer to the integral result.