I used to be able to select, copy, and paste the output of a Matrix, but now instead of copying the output the action copies something like Matrix(%id = 410996784). I am using Maple13/Classic/1D. Any fix? thanks.

I have had success adding units of distance in Maple using the example in the documentation.  However when I perform an addition on units of information such as gibibytes and mebibytes I receive:

"Error, (in Units:-Standard:-+) cannot represent the given unit in the system `SI`"

This behavior seems to be an ugly little non-orthogonality in the Maple language.  I have posted a test case to my files.  I did try the other systems beyond SI however this did not affect the behavior.

How we write this matrix
 

help me :(

I am needing help on how to make an authentication code for a message I send through Maple.

This signature can't just be my name and must be coded in some way. Any help?

Find the volume of the torus (doughnut) formed by revolving the circle x^2 + y^2 = 25 around the line x=6 using the washer method and the shell method on MAPLE?

I wanted to have solve avoid a particular soluton. I was in for a surprise. Consider:

Perhaps the following behavior is to be expected? would someone explain to me why Maple doesn't automatically apply the simplification needed to ascertain the equality and "erroneously" returns false?

 

(-1/x)*ln(1-x)-x+2=0:

please can you tell me how can I solve this equation.

this is my program to calcul pade approximant at n points complex or real. and i want to excute this program with L =40 or more but it can't.

 

L:=4:
P:=add(p[k]*x^k,k=0..L):
Q:=1+add(q[k]*x^k,k=1..L+1):
f:=(-1/x)*ln(1-x):

a:=seq(coeftayl(f*Q-P,x=I,k),k=0..L):
a1:=seq(coeftayl(f*Q-P,x=-I,k),k=0..L):

s:=fsolve({a, a1});
AP:=evalf(eval(P/Q,s)):
 please can you help to improve this program.

Hi, im relatively new to Maple and only use it occasionally to rearrange equations for further use. I would like to express the following equation in the form (V=...) but seem not able to. V(P,T) the equation should express volume V as function of P and T (pressure and temperature). b, c and d are constants EQN := V+b = (1/(V*(4*V-b)^3)-c*V-d)/(P*sqrt(T)*V^2) How can I do this? thanks for any help/suggestions

I am trying to approximate the solution of vi_vh to vi_vh = 1 / sqrt(vx_vh^2 + (vi_vh+vz_vh)^2) with the expression vi_vh = a * vz_vh^3 + b * vz_vh^2 + c * vz_vh + d + e * vz_vh * vx_vh^2 where b and d are zero The approximation is for the region -2<><>

I have a question where I'm trying to find the value of some variable C that when multiplied by the double integral of a function returns 1 as the answer.

The function I'm in putting is f:=(x,y) -> C* exp((-0.001*x)-0.002*y), but leaving out the C when inputting into maple

The function also has parameters for the values of x and y where both are between -1 and 1(including =1 and 1) and x<y with x being greater than or equal to 0

I'm trying to use Maple to calculate surface integral; before getting to the surface integral, I need to get cross product of two vectors; but I could not get the codes work. Please help.


with (VectorCalculus):

x:= (r,t) -> r*sin(t);
y:= (r,t) -> r*cos(t);
z:= (r,t) -> r^2.sin(t)*cos(t);

> R := Vector*[x(r, t), y(r, t), z(r, t)];

Vector [r sin(t), r cos(t), r sin(t) cos(t)]
> r1 := VectorField(diff(R, r));
VectorField([0, 0, 0] + Vector [sin(t), cos(t), 2 r sin(t) cos(t)])
>
> r2 := VectorField(diff(R, t));

 

 

This is my program below. When I try to get an output, nothing happens, please help!

 

 

> restart:

 

 

> with(plots):

readlib(readdata):

lrc:=array(-1..1,-1..1):

lrn:=array(-1..1,-1..1):

urn:=array(-2..2,-2..2):

unr:=array(-2..2,-2..2):

urc:=array(-2..2,-2..2):

Ylm:=array(1..2,-2..2):

Dj:=array(-1..1,-1..1):

Dj2:=array(-2..2,-2..2):

rhoc[-1..1,-1..1,1..21]:

Given z = x*y, where 0<>