
Re: Integrating a Matrix
Posted:
Nov 28, 2013 2:19 AM


Just give the matrix as the first argument of NIntegrate. Here's an example: NIntegrate[{{x, x^2, x^3}, {x^4, x^5, x^6}, {x^7, x^8, x^9}}, {x, 0, 1}] evaluates to {{0.5, 0.333333, 0.25}, {0.2, 0.166667, 0.142857}, {0.125, 0.111111,0.1}}
Cheers, Dave Snead
Original Message From: David Barnes Sent: Tuesday, November 26, 2013 10:24 PM Subject: Integrating a Matrix
I have a 3X3 matrix of functions fij[x], for i,j = 1,2,3, and I want to NIntegrate all nine elements over 0<x<1 to get a matrix of constants. Is there an easy way to do this other that doing 9 individual NIntegration's?

