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Description: Maple computer mathematics discussion group.
 

Dynamic Systems Question 
  I am using Maple 15. I have an electronic module containing a VCTCXO and a microprocessor to phase lock the VCTCXO to a gps 1pps signal. It works OK. Some times the system loses phase lock and it takes a long time to stabilize, again. I am looking at Dynamic Systems to develop a model to play with the... more »
By Thomas D. Dean  - Feb 8 - 6 new of 6 messages    

Question about concatenation “a||b” in Maple? 
  I test the code L=[2,1]; sum('a||b*L[1]', 'b' = 1 .. 2); It returns `a1*L[1]+a2*L[1]`, but I expect to get `a1*2+a2*2` after evaluation of `L[1]`. Any ideas?
By Rex  - Feb 8 - 6 new of 6 messages    

strange behavior in a while loop 
  Hi, I have the following code for a fixed point iteration in two dimensions: Restart; with(linalg); Gt:=matrix(2,1,[2-2*x2,1/2*sqr t((2-x1)*(2+x1))]); ...G:=array@op@unapply([op](ev al(Gt)),x1,x2): ...X0:=matrix(2,1,[0.5,0.5]);e psilon:=1e-12;Nor:=2;i:=1; ...while Nor > epsilon do X1:=G(X0[1,1],X0[2,1]);... more »
By pluton  - Feb 8 - 3 new of 3 messages    

implicit plot : line in 3D 
  Hi, is there a command in Maple that is able to plot a line in 3D which is defined by two nonlinear equations in three unknowns? ie plot the points (x,y,z) solution of f1(x,y,z)=0 and f2(x,y,z)=0. Implicitplot3d is for surfaces only if I am correct. Thanks
By pluton  - Feb 7 - 3 new of 3 messages    

Prefix and Suffix Notation in Maple? 
  Hello friends, I'm a regular Mathematica user, but I find that Maple does some things more intuitively and use it occasionally. However, it gets tedious typing function(arg) all the time. Mathematica solves this by using the prefix notation function@arg and suffix notation arg//function. Does Maple have comparable shortcuts?... more »
By Dr. Giggleson  - Feb 6 - 3 new of 3 messages    

Using Units 
  I am stumbling through using units in Maple 15. I want to express a quantity as 30fT == 30femtotesla == 30*10^(-15)T I can do 30*10^(-15)T and manipulate it. How do I use prefixes like femto- (f)? Tom Dean
By Thomas D. Dean  - Feb 5 - 3 new of 3 messages    

Maple 15 Syrup Ladder Networks do not accept uF 
  Maple 15 restart; with(Syrup); ckt:=[V,C(10uF)]; on line 1: ckt:=[V,C(10uF)]; ^ syntax error - Probably missing an operator such as * > Version; "0.1.16" ckt:="* name\nV 1 0\nR 1 2 100\nC 2 0 10uF\n.end": Print(ckt); * name V 1 0 R 1 2 100 C 2 0 10uF... more »
By Thomas D. Dean  - Feb 3 - 3 new of 3 messages    

(in iroot) powering may produce overflow 
  Has anyone seen this before and is there a way to avoid this error: |\^/| Maple 14 (X86 64 LINUX) ._|\| |/|_. Copyright (c) Maplesoft, a division of Waterloo Maple Inc. 2010 \ MAPLE / All rights reserved. Maple is a trademark of <____ ____> Waterloo Maple Inc. | Type ? for help.... more »
By Richard Mathar  - Jan 31 - 5 new of 5 messages    

Series Summation Question 
  I am a little curious about whether Maple can evaluate a certain infinite sum that fails with Mathematica (I do not have Maple so cannot test it myself). Here is the sum in Mathematica: Sum[q^(-6 + 4*n)/(1 - q^(-5 + 4*n)), {n, 0, Infinity}] /. {q -> 0.1} This leads to and error, but (Sum[q^(-6 + 4*n)/(1 - q^(-5 + 4*n)), {n, 0, 1}] /. {q -> 0.1)... more »
By clashton  - Jan 26 - 9 new of 9 messages    

Solve Polynomial 
  Maple 15 does not produce a solution to diff(eq,x)=0; But, one exists. eqn := (2*x^2-5*x+2)/(5*x^2-7*x-6); deq:=diff(eqn,x); solve(deq=0,x); ...eq2 := op(1, deq) = op(2, deq); solve(eq2,x,AllSolutions); returns two solutions as I expect. numer(eqn) is zero at x=2 and x=1/2 denom(eqn) is zero at x=2 and x=-3/5... more »
By Thomas Dean  - Jan 20 - 7 new of 7 messages    

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