Modified trapezoidal integration over specific limits of integration.
% function y = trapint(f,x,a,b)
% Author: Damon Bradley
% Purpose: Modified trapezoidal integration over specific limits of integration.
% Last revised: Tuesday, March 20, 2012
%
% Inputs:
% ----------------------------------------------
% x - Domain of function f
% f - A fuction defined by a vector of points
% a - Lower limit of integration
% b - Upper limit of integration
%
% NOTE: If a and b are not specified, this function is reduced to the
% normal trapz function
%
% Outputs:
% ----------------------------------------------
% y - Integration result
%
% Prerequisites:
% None
%
% Usage Example
% clear
% clc
% close all
% N=1000000; mu=5; sig=1; % Define parameters for an N-sample Gaussian random vector
% [counts bins] = hist(mu+sig*randn(N,1),sqrt(N)); % Compute histogram.
% p = counts/((bins(2)-bins(1))*N); % Compute corresponding PDF
% stairs(bins,p)
% y=trapint(bins,p,mu,inf) % Integrate from the mean to infinity. Should get 0.5 in theory.
% y =
%
% 0.5019
Zitieren als
Damon Bradley (2024). Modified trapezoidal integration over specific limits of integration. (https://www.mathworks.com/matlabcentral/fileexchange/35738-modified-trapezoidal-integration-over-specific-limits-of-integration), MATLAB Central File Exchange. Abgerufen .
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- MATLAB > Mathematics > Numerical Integration and Differential Equations > Numerical Integration and Differentiation >
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Version | Veröffentlicht | Versionshinweise | |
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1.0.0.0 |