Hi all, I found that the expression:

(2x+7)/5+(6x-3)/3

automatically simplifies to

Is there a function that will return

which is one fraction, instead?

Hello everyone, I am new on Maple, I am trying to solve a system of six nonlinear algebraic euqation..and can't get it to work..if someone can help me.. model2.mw

still have problems,
1.
restart:
f := proc (x) options operator, arrow; piecewise(0 <= x and x < 4, 50, 4 <= x and x < 5, 0, 5 <= x, f(x-5)) end proc;

plot(proc (t) options operator, arrow; evalf(Int(f, 0 .. t, epsilon = 0.1e-3, digits = 15)) end proc, 0 .. 20);

in the above figure,there is a discont point in the interval [16..18],but in fact,it's a continuous curve.

2.
how to use fsolve deal with two periodic functions?

i define two variables as follow:

restart:

omega:=1

omega[i]:=2

i find the 'omega' i had defined  renewd by

omega:=table[i=1]

then type:

omega,omega[i]

result is:    omega, 2

how can i define these two variables in one worksheet?

hello everyone, I have a numerical methids exam in acouple of hours and I just dound out that maple 11 on our campus computers has an old student package tht doesnt include numercalanalysis , is there anyway to update it ?

How can i solve this problem ,when i try to execute the error occur.since the y1(t) and y1 cannot both occur in the system.

Hi everyone,

I would like to do:

f:=unapply(x**2,x);
j:=unapply(2*f(x),f(x));

Basically it is to define j(f(x))

But this is doesn't work. What is the right way to do it?\

My final goal is to calculate int(j(f(x)), f(x)=-infinity..infinity).

I have the following lines of code:

W:=sum((k^(2*i))*sum((e^(j))*w[i,j](r,t),j=0..2),i=0..2);

P:=sum((k^(2*i+1))*sum((e^(j))*w[i,j](r,t),j=0..2),i=0..2);

for c from 0 to 2 do

  for d from 0 to 2 do

    rw[c,d]:=coeff(coeff((k/(2*r))*(diff(W,r)*diff(P,t)-diff(W,t)*diff(P,r)),k,2*c),e,d)

  end do

end do;

I mean to compute the coefficients in front of powers of e inside...

Hi everyone,

Is it possible to perform an integral over vector without writing a multiple integral over each component?

I am integrating over a vector of dimension 12, so I am trying to find another way to calculate rather than writing 12 integrals.

Thanks

Please write for me a code for the following problem.

Let (S): x^2 + y^2 + z^2 -2*x +2*z + 1 = 0 be a sphere and M(1, 2, -1), N(3, 1, -1) be two points. Find the coordinates of the point K lies on the sphere (S) such that the triangle KHN has minimum area. 

Thank you very much.

Hi!

Probably trivial, ...but how to set up a slider in degrees.
I'd like to use degrees instead radians in expresion ...from some reasons.
Help will be apreciated :-)

wzelik

slider.mw

Hello, 

I am fairly new to using Maple and am a university student. Bascially, I wanted to ask, how can I solve for all roots of the transcendental equation 

=

I more than 20000 data points on a an excel file and i want to plot one column against the other. So I imported 10 data points from each column seperately and tried ploting it as a normal plot but it would not work. I kept on getting error messages like 

plot([CosAa,CosBb]);

Error, (in plot) incorrect first argument [Array(1..10, 1..1, {(1, 1) = 0.83333e-2,
 (2, 1) = 0.166666e-1, (3, 1) = 0.249999e-1, (4, 1) = 0.333332e-1,
 (5, 1) = 0.416665e-1, (6, 1...

Dear All,

I have an equation to solve. 

1= sum_{i=1}^n 1/(x+a_i) where a_i is given. I want to solve this equation for unknown x. I know there is a value between 0 and 1. Although I can find the solution by numerical method, I am interested in close form to solve this equation.

Help please.

Best Regards,

Saeid

I have these as outputs from comparing the coefficients. How do i assign the g_2xyz totheir associated numbers.

eg at present g₂₀₀₀ is g_{2000. I need it to be 1.2e7. And so on down the list.}