How To Calculate Inverse Error Function In Excel
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the inverse error function erf(x)=0.8 <=> x=inverf(0.8) <=> x=0,90469 Currently i am using the goal seeker, but i know that matlab has a erfinv function - does excell have one? inverse erfc calculator if not - does anybody know about som java-coding that can do it Best erfinv excel regard morten Morten, Apr 1, 2004 #1 Advertisements Jerry W. Lewis Guest inverf(p) = SQRT(GAMMAINV(p,0.5,1)) inverfc(p) = -NormSInv(p/2)/Sqrt(2) Mathemetically exact, but
Erfcinv Excel
not necessarily numerically good in versions prior to 2003. Jerry Morten wrote: > Hi > > I need to use the inverse error function: > > erf(x)=0.8 <=> x=inverf(0.8) <=> x=0,904696 > > Currently i
Inverse Error Function Matlab
am using the goal seeker, but i know that matlab has a erfinv function - does excell have one? if not - does anybody know about som java-coding that can do it? > > Best regards > > morten Jerry W. Lewis, Apr 2, 2004 #2 Advertisements Morten Guest Thats works perfect... Thank you for solving my problem Best regard Morten, Denmark Morten, Apr 2, 2004 #3 Jerry W. Lewis inverse complementary error function Guest Glad it helped Jerry Morten wrote: > Thats works perfect... Thank you for solving my problem. > > Best regards > > Morten, Denmark Jerry W. Lewis, Apr 2, 2004 #4 Advertisements Show Ignored Content Want to reply to this thread or ask your own question? It takes just 2 minutes to sign up (and it's free!). Just click the sign up button to choose a username and then you can ask your own questions on the forum. Sign Up Now! Similar Threads formula for inverse tan of a number with answer in degrees Gord Dibben, Jul 4, 2005, in forum: Excel Misc Replies: 0 Views: 86 Gord Dibben Jul 4, 2005 log inverse Az, Nov 28, 2005, in forum: Excel Misc Replies: 1 Views: 83 Nov 28, 2005 Inverse rank SteveC, May 3, 2006, in forum: Excel Misc Replies: 6 Views: 134 SteveC May 3, 2006 binary inverse boardmaker, Jun 13, 2006, in forum: Excel Misc Replies: 4 Views: 87 daddylonglegs Jun 13, 2006 Excel should support a proper inverse to "Text to columns" johndog, Oct 4, 2006, in forum: Excel Misc Replies: 0 Views: 121 johndog Oct 4, 2006 inverse matrices Chey, Jan 30, 2007, in forum: Excel Misc Replies: 6 Views: 122 Mike Middleton Jan 31, 2007 FFT
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Inverse Erfc Matlab
developed, and nurturedbyEricWeisstein at WolframResearch Calculus and Analysis>Special Functions>Erf> Calculus and inverse error function python Analysis>Calculus>Integrals>Definite Integrals> History and Terminology>Wolfram Language Commands> Inverse Erfc The inverse erf function is the inverse function how to calculate error function in casio calculator of such that (1) with the first identity holding for and the second for . It is implemented in the Wolfram Language as InverseErfc[z]. It is related to inverse http://www.office-forums.com/threads/the-inverse-error-function-erfinv.862363/ erf by (2) It has the special values (3) (4) (5) It has the derivative (6) and its indefinite integral is (7) (which follows from the method of Parker 1955). The Taylor series about 1 is given by (8) (OEIS A002067 and A007019). SEE ALSO: Erfc, Inverse Erf RELATED WOLFRAM SITES: http://functions.wolfram.com/GammaBetaErf/InverseErfc/ REFERENCES: Bergeron, F.; Labelle, G.; and http://mathworld.wolfram.com/InverseErfc.html Leroux, P. Ch.5 in Combinatorial Species and Tree-Like Structures. Cambridge, England: Cambridge University Press, 1998. Carlitz, L. "The Inverse of the Error Function." Pacific J. Math. 13, 459-470, 1963. Parker, F.D. "Integrals of Inverse Functions." Amer. Math. Monthly 62, 439-440, 1955. Sloane, N.J.A. Sequences A002067/M4458, A007019/M3126, A092676, and A092677 in "The On-Line Encyclopedia of Integer Sequences." CITE THIS AS: Weisstein, Eric W. "Inverse Erfc." From MathWorld--A Wolfram Web Resource. http://mathworld.wolfram.com/InverseErfc.html Wolfram Web Resources Mathematica» The #1 tool for creating Demonstrations and anything technical. Wolfram|Alpha» Explore anything with the first computational knowledge engine. Wolfram Demonstrations Project» Explore thousands of free applications across science, mathematics, engineering, technology, business, art, finance, social sciences, and more. Computerbasedmath.org» Join the initiative for modernizing math education. Online Integral Calculator» Solve integrals with Wolfram|Alpha. Step-by-step Solutions» Walk through homework problems step-by-step from beginning to end. Hints help you try the next step on your own. Wolfram Problem Generator» Unlimited random practice problems and answers with built-in Step-by-step solutions. Practice online or make a printable study sheet. Wolfram
Forums Excel Questions code for inverse erf function Results 1 to 7 of 7 code for inverse erf functionThis is a discussion on code for inverse erf function within the Excel Questions forums, part of the Question Forums category; I am doing work with http://www.mrexcel.com/forum/excel-questions/234208-code-inverse-erf-function.html confidence intervals for normally distributed data and I want to be able to calculate specific ... LinkBack LinkBack URL About LinkBacks Bookmark & Share Digg this Thread!Add Thread to del.icio.usBookmark in TechnoratiTweet this thread Thread Tools Show Printable Version Display Linear Mode Switch to Hybrid Mode Switch to Threaded Mode Nov 16th, 2006,12:38 PM #1 pete6982 New Member Join Date Aug 2006 Location Louisville, KY Posts 19 code for inverse erf function I am doing work with confidence intervals error function for normally distributed data and I want to be able to calculate specific intervals (such as .92, etc). If x is the mean and y is the std dev I know that CI=(x-ny,x+ny), where n=sqrt(2)*inverseERF(CI). I tried to make a vba function to calculate the invERF, but I'm off by a bit. Does anyone know of an existing invERF funcion? I can't find actual code for one anywhere. Thanks, Pete Share Share this post on Digg Del.icio.us Technorati Twitter Reply inverse error function With Quote Nov 16th, 2006,01:31 PM #2 Andrew Poulsom MrExcel MVPModerator Join Date Jul 2002 Posts 73,092 There are ERF and ERFC functions in the Analysis ToolPak, but I don't know if those are what you want. There is also a CONFIDENCE function. Share Share this post on Digg Del.icio.us Technorati Twitter Reply With Quote Nov 16th, 2006,01:52 PM #3 pgc01 MrExcel MVP Join Date Apr 2006 Posts 18,224 Hi Pete Look at the function CONFIDENCE() as Andrew said. If, however, you really need to compute the value of the invERF there is a small code (posted by JJ 05-18-06 09:20). It is in Pascal and so should be very easy to port to vba. The name of the function is invErf http://les-mathematiques.u-strasbg.f...86277&t=286277 Hope this helps PGC Share Share this post on Digg Del.icio.us Technorati Twitter Reply With Quote Nov 17th, 2006,01:34 PM #4 pete6982 New Member Join Date Aug 2006 Location Louisville, KY Posts 19 thanks guys. i was able to recode the pascal invERF function into vba. My worksheet works like a charm now. in case anyone else ever wants a vba version, here's what I ended up with: Code: Function invERF(y As Double) As Double Dim pi As Double, x As Double, d As Double pi = 3.14159265358979 If y < 0 Then invERF = 0 'interval includes the mean only Exit Function ElseIf y >= 1 Then invERF = 10 'makes the interval include ever