I just typed an expression, such as

expand((z-6+I)*((5-I)*z+9));

on a line. On the next line, I wish to evaluate this expression at at z = 4+I, say,

without having to retype the expression. How do I do this?

%

simply returns the previous line.

I have to approx how many prime number there are between 2 to 50 000 by using  int(1/ln(t),t=2..50000);

I need to use (to approximate):

a) rectangle method

b) trapezoid method

c) simpsons method

However, I can not use the fonction like simpson(1/ln(t),t=2..50000); to solve them, I need to go with the definition and I have no idea how.

Can any1 help me?

ok so i have summed down two plot functions (P1,P2) so then i can plot them together using display, however whenever i try to use display it comes up with display({Plot(...),Plot(...)}), what do i need to do right, or what have i done wrong.

I have the following equation I need to integrate

R=int((T(x) - a ) * diff(T(x) ,x ) ,x=0..L)

T(0)=To

T(L)=a

Anyone know how to solve this???

The creation of 2D color plots is not very comprehensively supported by Maple. However, such plots may be produced by using plot3d with its 'color' option. Unfortunately, plot3d(..., color=myProc(x,y)) works only under certain conditions.  The problem seems to be that myProc(x,y) is evaluated by plot3d just one time. Thereby, unassigned variables 'x' and 'y' are given over instead of numeric values. The returned expression is then used for numerous calculations of the color by successively assigning different values to 'x' and 'y'.

 Dear all:

   I wonder how to integrate a function

 

f=t1^a1*t2^a2*t3^a3/(1-t1)^b1/(1-t2)^b2/(1-t3)^b3
 

  over the surface

 0<= t1,t2,t3 <=1, t1+t2+t3=1  ?

Thanks,

Peter

Hi, does anybody know how I would create an array from a function.. for example:

Say I have the function y = x^2, and I am choosing the points 1-5 for x, how would I make an array to display all the values 1-5 and their corresponding y-values?

Help much appreciated.

Hi!

I want to work with polynomials over galois fields (finite fields). Useing the standard operations for galois fields from the GF package gets really unreadable for lenghly polynomials, so i am looking for something more legible. I think the nicest way would be to define polynomials in a standard way, e.g. y:= x_1+x_2^2 and than later on decide that x_1 and x_2 are elements from a finite field. However i found no way to do this.

But there should be at least two ways to make the polynomials more legible:

Hi,

I am having problem with dsolve when known input functions are supplied. The code works fine in Maple 10, but not in Maple 11. The error I get in Maple 11 is the following:

Error, (in icp) unable to store '0.2800000000000000000000e-1*s[11](t)' when datatype=float[8]

where s[11](t) then is the known function.

Are there any changes in the call of dsolve? I cannot see any changes in the manual.

Thanks in advance! 

Best regards

Johan Sjöberg

How do I make a maple procedure that gives me the imagines of the Mobius strip in half and in 1/3's???

Hi!  New user here and would appreciate specifics in what to do for this lab exercise 1.  the following contains a brief intro along with exercise 1 questions.  thanks for any help!

Let f be an arbitrary continuous function defined on an interval [a − δ, a + δ] and suppose

that f has a continuous first derivative on this interval. The equation of the tangent line to

I have the output

table([(false, true) = false, (true, true) = true, (true, false) = false, (false, false) = false])

However, I would like it to appear somewhat like this,

table([
(false, true) = false,
(true, true) = true,
(true, false) = false,
(false, false) = false
]);

Is there a way to tell Maple to do that?

Dear Maple users,

I run into a  question how to expand Diff(u*v,t) into Diff(u,t)*v+Diff(v,t)*u in Maple.

Best

RZC

Hello,

i would like to find the Taylor expansion for specific functions but I would like to get the result in following form (for example):

1/((1-s)^(1/2)) = Sum( (2*k)!/(k!)^2*2^(-2*k)*s^k, k=0..infinity)

Is there a way how to get generic equation for n-th term of Taylor series?

Thank you.