Issue 122202

Summary:	Numerical integration - Simpson's rules
Product:	Calc	Reporter:	Edwin Sharp <elish>
Component:	code	Assignee:	AOO issues mailing list <issues>
Status:	CLOSED WONT_FIX	QA Contact:
Severity:	Normal
Priority:	P3	CC:	issues
Version:	4.0.0-dev
Target Milestone:	---
Hardware:	All
OS:	All
Issue Type:	FEATURE	Latest Confirmation in:	---
Developer Difficulty:	---

Description Edwin Sharp 2013-05-01 19:21:02 UTC

Given: equally spaced x values, x0 till xn and respective function values in two columns

Three points n=2: Simpson's 1/3 rule
Function Simp13 = (x2-x0)*(f(x0)+4f(x1)+f(x2))/6

Four points n=3: Simpson's 3/8 rule
Function Simp38 = (x3-x0)*(f(x0)+3f(x1)+3f(x2)+f(x3))/8

Five points n=4: Simpson's 1/3 rule on first and last three points

Six points n=5: Simpson's 1/3 rule on first three points and Simpson's 3/8 rule on last last four points

etc.

Comment 1 Edwin Sharp 2013-05-11 18:48:32 UTC

See http://wiki.openoffice.org/wiki/Extensions/Ideas/Calc