Hello everyone,

I have a great problem with maple (cause I'm a beginner)  My problem is When i write the following
for i from 1 to M do x[i]=evalf(a* cos(t[i])) end do;
I get a numbers for x[i], like t[1]=0, then x[1]=3.
until now no problem.
But when i calling x[1] in another place in the same file. i get x[1]=0.
Could any one help me.
Amr

Define a slightly messy function - in this case a sum of random Gaussians:

spikes:=sort([seq(RandomTools[Generate](distribution(Uniform(0,5))),i=1..300)]):
Spikes:=add(rand()/1e12*exp(-(Z-spikes[i])^2/2/.001^2)/(1+Z)^(5/2),i=1..nops(spikes)):

Takes no time at all to plot, or evaluate 10^3 times:

time(plot(Spikes,Z=0..5,numpoints=1000,adaptive=0));


Now put the whole thing in a procedure A(z), so that we can use A(z) as a function unless...

Hi everybody, could any one tell me " What is the job of order  round(evalhf(Digits)) ?

Amr

Hi,I explained my problems in the WS below,Thanks in advance.

Prob_defIntrl.mw

I want to export a figure,

whatever the format I select, for example bmp,

I found that the resolution of that exported bmp file is fixed 400*400,

how can I change the resolution with a command,

because of its precise control,

help me,

thank you in advance.

Almost a couple of years ago,my quantum mechanics II course teacher was talking about the importance of diagonalizable matrices.Near the end of that lengthy class I was losing my attention & at that time he was talking about finding the diagonalization using Mathematica,but I was not sure.However,since I didn't/don't use Mathematica,I was trying to find the command to diagonalize a given matrix in Maple.I was using maple 13 then & I found a command  called "DiagonalMatrix(...

ans:=CompleteSquare(x^2+2*x)

                                             ans := (x+1)^2-1

ans1:=CompleteSquare(x^4+2*x^2, x^2)

Error, (in Student:-Precalculus:-CompleteSquare) arguments after the 1st should be a name, function, or a list or set of names or functions...

Hi,   I want to plot a vecotr 100x1   with neumerical data. Could anyone help me.

Amr

> f (x) =  x^3+2*x+1
                 
> NewtonsMethod(f(x), x = -.5, output = sequence);

              -0.5, -0.4545454546, -0.4533983368, ...

Hi, every body,

When I use the two orders stackmatrix and augment. It is ok. But, when I try to use the reslut matrix in any place no matrix appears.

Could any one help me.
Amr

Maple does not find the product
product((k+a)*(k+b)/((k+c)*(k+d)), k = 1 .. infinity) assuming a > 0, b > 0, c > 0, d > 0, a+b = c+d;

                         GAMMA(c) GAMMA(d) infinity
                         ----------------------------------

Dears,  I have a system of linear equation A*X=B   where A matrix 607x400  & X vector  400x1 and B vector 400x1

where A not square matrix. To sove,  I do

(A^T)*A*X=(A^T)*B,

Let   D= (A^T)*A        D  square matrix

then

D*X=(A^T)*B,

the solution is

X= (D^-1)*(A^T)*B.

could any one help me to do this by maple and cut the resluts in...

In a cup run and CuI crystals PbCl2. Did four works of solubility: pKCuI = 11.96, pKCuCl = 6.73, pKPbCl2 = 4.29, pKPbI2 = 8.19. You have 4 unknown concentrations in the solution, but 5 equations (which?). Can you explain what will happen? Documented with calculations.