## 564 Reputation

6 years, 345 days

## a question on output of dsolve...

Maple

i have system of ode, which has three unkonwn function,x(t),y(t),z(t), and i need differentiation of theses function with respect to " t " , how can i use numeric solution to have these parameters? tnx for help in advance

 > restart;
 > wl:=0.08:alpha:=0.5:gamma0:=8.82*1e10:mu0:=4*Pi*1e-7:gammA:=gamma0/(1+alpha^2):alphaPrime:=mu0*gammA*alpha: gamma1:=mu0*gammA:m0:=mu0*1e5:num:=[seq](i,i=1e2..1e4):
 > w:=num[1]: dsys:={diff(x(t), t) =alphaPrime*(z(t)^2*wl*cos(w*t)/gamma1+y(t)^2*wl*cos(w*t)/gamma1),diff(y(t),t)=-z(t)*wl*cos(w*t)-alphaPrime*y(t)*wl*cos(w*t)*x(t)/gamma1,diff(z(t),t)=y(t)*wl*cos(w*t)-alphaPrime*z(t)*wl*cos(w*t)*x(t)/gamma1,x(0)=.01,y(0)=1,z(0)=0.1};
 (1)
 >
 > ans:=dsolve(dsys,numeric,output = listprocedure);
 (2)
 > #i want to have d/dt(x(t),d/dt(y(t),d/dt(z(t)
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## a question on heat equation PDE...

Maple

i have a PDE of heat equation, i can solve this using two boundary and initial condition, but i can not handle it using second boundary condition and maple also can not ! hoc can i solve it ?

## An issue with mapleprimes.com...

MaplePrimes

there is a problem with users tab and web page of mapleprimes, and it just does display the first page and not other pages ...
for example :
https://www.mapleprimes.com/users/?page=2
is not displayed ...

## problem using maple toolbox on MATLAB...

Maple

i have started using maple toolbox on MATLAB and i have alot of questions...
first of all, why there is not a good document for using maple toolbox on matlab ? how commands should be use and so on?
MY FIRST QUESTION : can we increase number of digits for using solve or fsolve command in maple toolbox on matlab?
MY SECOND QUESTION : when using maple toolbox, the output is displayed just like when using 'pretty print' command, can we deactivate this option ?
for example, i used fsolve , and want output and the calculations be done using 50 Digits, but it does not ! :(

## how to create some sort of numbering for...

Maple

hi every one,i want to create some kind of numbering for index, how can i generate them using "seq" command or "for loop" ?

 > restart; with(LinearAlgebra):
 >
 > for i to 3 do for j to 3 do N[i||j];print(%);od:od:
 (1)
 > # i want to create the below numbers, how can i do this using for loop or seq command ?
 > N[11]
 (2)
 > N[12]
 (3)
 > N[13]
 (4)
 > N[21]
 (5)
 >