# Numerical Integration

(Difference between revisions)
 Revision as of 10:50, 3 November 2009 (view source)JMora (Talk | contribs)← Older edit Revision as of 10:50, 3 November 2009 (view source)JMora (Talk | contribs) Newer edit → Line 5: Line 5: :$\int_{\lambda_a}^{\lambda_b}\! f(\lambda)\, d\lambda.$ :$\int_{\lambda_a}^{\lambda_b}\! f(\lambda)\, d\lambda.$ − where $\lambda$ can be a 1D, 2D or 3D domain. + where $\lambda \,$ can be a 1D, 2D or 3D domain. For our interest in the Finite Element Method, the purpose is to describe how the element matrices can be integrated numerically. For our interest in the Finite Element Method, the purpose is to describe how the element matrices can be integrated numerically.

## Revision as of 10:50, 3 November 2009

Numerical integration refers to all the procedures, algorithms and techniques in the numerical analysis to obtain an approximate solution to a definite integral.

That is, how to obtain a numerical value of: $\int_{\lambda_a}^{\lambda_b}\! f(\lambda)\, d\lambda.$

where $\lambda \,$ can be a 1D, 2D or 3D domain.

For our interest in the Finite Element Method, the purpose is to describe how the element matrices can be integrated numerically.