I'm new to using Maple. I'm trying to evaluate an equation where all unknowns are given. So to say use Maple

as a kind of desktop calculator with the possibility to change certain input variables and see what the outcome is.

I'm wondering why the trigonometric functions are not evaluated.

> restart; with(plots); with(LinearAlgebra); with(linalg);
> m1 := 2280; m2 := 2243; m3 := 2220; k1 := 300; k2 := 200; k3 := 100; F0 := 4.1; omega1 := sqrt((k1+k2)/m1);
> Sys := m1*(diff(u1(t), t, t))+(k1+k2)*u1(t)-k2*u2(t) = F0*cos(omega*t);
print(??); # input placeholder
> IC := u1(0) = 0, (D[1](u1))(0) = 0;
> csol := dsolve({IC, Sys}, {u1(t)});
%;
> p1 := subs(csol, u1(t));
> 
> plot(p1, t = 0 .. 10*Pi, 'color' = "red", 'thickness' = 2, labels = ...

I have 5 term which each term includes three function of time (autonomous system ), i want to obtain time derivative of each term as other terms for example if i define each term as a dimensionless variable , e.g.  x , y , z , v , w , i want to know dx/dt = as  x , y , z , v , w.

i differentiate each term but i dont know how to obtain each differentiated term as other terms

Hello,

I need to plot M vs phi from the following ode. For this I am using implicitplot but unfortunately

I am getting empty plot. Please guide me through this issue.

Thanks 

eq1 := 1/(1-phi)^2.5/(1+4117/783*phi)*diff(f(eta),`$`(eta,3))+1/2*f(eta)*diff(f(eta),`$`(eta,2))

+M*(1-diff(f(eta),eta)) = 0;

bc:=f(0)=0,D(f)(0)=beta/(1-phi)^(2.5)*(D@D)(f)(0),D(f)(N)=1;

respar:=dsolve({eq1,f(0)=0,D(f)(0)=beta/(1-phi)^(2.5)*(D@D)(f)(0)},numeric,

I have a program in  matlab,

I want to change below code in maple,

henon_map = inline('[a-x.^2+b*y x]','a','b','x','y');

%a=input('a [0] = ');
b=input('b [0.4] = ');

%if(isempty(a))
% a=0
%end

if(isempty(b))
 b=0.4
end

Npts=200;
Ntrans=100;
Ntot=Ntrans+Npts;

% For the whole window:
fig1=1; fig2=2;xmin=-2;xmax=2; Nmin=1; Nmax=50;
amin = -0.09;
amax = 1.249;

I am getting the reecursive assignment error on the folowing code in the band[i]:= [band[]i[], ... section.

CreateMatrix is defined and I know that works and creates a global Matrix H

Branched from huffman coding (excellent example).  The huffman tree was not encoded in the message. The tree was known from the original message but suppose we didn't have the original message.  We need the tree in the compressed message.

How do you include the huffman tree in the message?

Hi. I'm very new to maple, and got stuck on a task on my assignment. I'm supposed to find the area of the segment (gray area) with the diameter D as a function of h. Any help and pointers is appreciated, thanks. :)

Task: Two circles will be placed inside a square of side 20cm (see figure below). The circle diameters can vary, but the total being 20cm. Show that the circles takes less space (at least land) if they are equal.

I want to solve the equation (1 + 1/x)*(1 + 1/y)*(1 + 1/z)=2 with integer solutions. I tried 

isolve((1 + 1/x)*(1 + 1/y)*(1 + 1/z)=2);

and I get {x = -1, y = -2, z = 0}. Is this a bug?

Every time i open an already saved document and change it then try to save it it comes up with this error:cwmaple.exe has stopped working!!! Why does this happen??

Please Help

Thanks,

I'm trying to use define but get unexpected behavior. Say I want to declare that the map phi is additive. I would try this

define('phi',phi(x::`+`)=map(phi,x));

But if I do phi(x+y) now, I get a warning about an infinite recursion. I get an indication of what the problem is if I define instead

define('phi',phi(x::`+`)=op(x));

Now phi(x+y) produces "x+y" rather than "x,y", so somehow the sum is considered atomic. Can somebody explain this to me?

The following example has been a cornerstone in the computer lab exercises for Calculus II:

a := n -> (-1)^n*arctan(n):
Limit( a(n), n=infinity ):
% = value( % );
              /    n          \     1      1         1      1     
     lim      \(-1)  arctan(n)/ = - - Pi - - I Pi .. - Pi + - I Pi
n -> infinity                       2      2         2      2     

Hi, My name is Remon. I am first year student in calculus 1, I want to be a financial engineer, I will study finance and I will do my best to study mathematics as well. I need to learn Calculus with Maple. but I do not really from where should I start? Is there any video training for Calc 1,2, 3 that I can buy to learn ?? If there is any advice to help me out to reach my goals I will be very thanksfull.

I usually write my question banks with LaTeX.

The manual says:

The LaTeX package epsfig is loaded by default. The ed package is required. Other standard LaTeX packages, for example, amsmath, can be included using the \usepackage macro.

But if I start my document with

\documentclass[12pt]{article}
\usepackage{amsfonts}
\usepackage{ed}

and use for example \mathfrak{P} I only get a blank box instead of this symbol in my question bank.