MaplePrimes Questions

Does anyone know if Maple has a counterpart to the Wolfram Lightweight Grid Manager that can be used with Maple 14 or Maple 16?

Hi

 

In earligere versions of maple (14 and 15) I yoused this code (program) to plot the area between functions, but it does not work in maple 17 (or 16).

integralplot2:=proc(f1,f2,a,b,{[color, colour] := blue,transparency := 0.5,numpoints:=500})     

local mingr,maxgr,variable,p,c,n,pts1,pts2,polys,i,xkoor,ytop,ybottom,yvals,plotf1,plotf2;          

if evalf(a)<evalf(b) then       

Hi

i want to find the eigenvalues of this system of two equations with two unknowns:

2.097*k = .9525000000*k^.35-2.2225*b/k^.65+.2 and

(2.097-2.0955/k^.67)*b = -.2

How i can do this in Maple?

Any help will be appreciated

I would like to determine the sign of a derivative of a function where I would make some restrictions on parameters and variables (e.g. larger zero). If a sign is not unambiguously possible, I would like Maple to give me an expression (threshold) for when the derivative is positive or not.

I would be very thankful for any hints!

(Notice: I am a Maple beginner!)

Best,

Max

Hello,

 

I would like to know if it is possible to redefine a function.

 

Let's say I have assigned one variable the following value:

e:=f(x,y,t) where f(x,y,t)

 

Later after some calculations I find that f(x,y,t) no longer depends on the parameter y so should be f(x,t).

 

Is it possible to pass the changes to "e" without having to actually rewrite the expression of "e"?

 

Hello I have the following system of equations and I want to solve for rho1 and z1

E := (1/2)*(1/rho1^2+1/rho1^2)-1/sqrt(z1^2+rho1^2)-1/sqrt((R-z1)^2+rho1^2)-1/sqrt(z1^2+rho1^2)-1/sqrt((R-z1)^2+rho1^2)+1/R+1/sqrt((2*rho1)^2+(R-2*z1)^2);

Er1 := diff(E, rho1);

Ez1 := diff(E, z1);

solve([Er1, Ez1], {z1, rho1});

The system is a function of R.

The solve command spits out Kernel lost after some time. So my question is how can I solve it ?

My version is maple 13. I tried to find out how to solve system of linear equations like A*X=b, whre A is a matrix and X and b is a vector, the solution is X:=linsolve(A, b),

But, the system just return the formula of linsolve(A,b) where it replace A and b by their forms of matrix. Simplely , the software doesn't show the result. I tried also evalm(linsolve(A,b)) , but it just return dezens of linsolve(a,b).

There seems to exist no such facility with Maple 17, although that was present for Maple 16, 15, ...  and it seemed to be useful. Please explain its absence.

hey friends please check this code and help me in removing errors. working_nonlinear.mw

there is a triangle, one side is t, another side is sqrt(1-t^2), however this do not need sqrt

i use sin law, can not dsolved the following equation, it can onlyl be solved for right angled triangle

is it only in circle's triangle be solved? 

besides triangle, the goal of mine to use another shape 

ode := diff(u(t),t)-f(t)=0,diff(f(t),t)+t*f(t)=0,diff(f(t),t$2)+(t*sin(a)*sin(b))^2*f(t)=0;  

ode := diff(u(t),t)-f(t)=0,diff(f(t...

Hi,

 

I have the following function to plot

Hello all,

 

as in title I have trouble with exporting simulation result data in MapleSim.

Storing the result works fine, but the problem occurs when it comes to exporting (and viewing the result again).

The console says

"at offset 67895293 in `C:\Users\YUKIHI~1\AppData\Local\Temp\_result2_68856801825556689291274099867619489771.m`, unexpected end of file "

 

the simulation settings are as follows.

td : 2 ms

I'm working with saving procedures to repositories for the first time.  I have been using the following documentations as a guide:
http://www.maplesoft.com/support/help/Maple/view.aspx?path=libname
http://www.maplesoft.com/support/help/Maple/view.aspx?path=repository%2fmanagement

Anyhow, when I run this code at the start of my program:


restart;
savelibname :="/Users/ryderbergerud/Documents/School/year4/Summer/Research/myLib";
march('create'...

The problem is as follows:

1- define r := rem(x^3+x+1, x^2+x+1, x, 'q')

2- then once you evaluate this expression, in variables list you may see r as the only variable, whereas q is the quotient variable and it is not provided there.

3- for example if you evaluate q it will give x-1

4- or even you can get the assigned varibles list by anames(user) and it gives both r an q

5- the question is: why q is not shown in variables list

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