help-octave
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Maxima-discuss] dblquad fail


From: Ether Jones
Subject: Re: [Maxima-discuss] dblquad fail
Date: Thu, 28 Jul 2016 04:54:27 -0700 (PDT)

Thank you.

This works:
octave-3.6.4.exe:3>  I = dblquad(@(r,q)abs(
r.*sqrt(r.^2+1-2*cos(2*pi*q))),0,1,0,1)
I =  0.586626703381746

... but this doesn't:
octave-3.6.4.exe:4>  I =
dblquad(@(r,q)r.*sqrt(r.^2+1-2*cos(2*pi*q)),0,1,0,1)
error: quadcc: integrand F must return a single, real-valued vector
error: called from:
error:   K:\OctaveVS\share\octave\3.6.4\m\general\dblquad.m at line 72,
column 10
error:    at line -1, column -1
error: quadcc: integrand F must return a single, real-valued vector
error:   K:\OctaveVS\share\octave\3.6.4\m\general\dblquad.m at line 65,
column 5

Why is the abs() necessary?





--
View this message in context: 
http://octave.1599824.n4.nabble.com/Fwd-Maxima-discuss-dblquad-fail-tp4678866p4678889.html
Sent from the Octave - General mailing list archive at Nabble.com.



reply via email to

[Prev in Thread] Current Thread [Next in Thread]