How to reserve dx when diff a formula

when i diff x^2 , need to be 2*x*dx but it only 2*x

How to reserve dx?

How do I create a symbolic sequence with a variable number of elements, so that later I can come back and set the number of elements to an integer? Maple has inert forms for many functions (e.g. Sum and sum), but there does not appear to be anything like "Seq" which would be the inert analogue of "seq".

Here are some of my attempts

  Ls:='seq'(a[j],j=2..p);
eval(Ls,p=5);
subs(p=5,Ls);
Ls:=seq(a[j],j=2..5);
Ls:='seq'(a[j],j=2..5);

Hi,

I have this problem when I use assume and assign a value to an assumed parameter.

Example:

restart:assume(beta>0):

g:=int(Sum(5*sin(n*beta*x),n=1..5),x) ;

beta:=1;

g;

Normaly beta:=1 is replaced into g. The result obtained is function of beta and beta:=1 is not replaced.

Why beta:=1 is not replaced in g ?

Thanks for suggestion

 

>

Following Christopher2222 request, I wrote the following procedures for "exact" cubic Hermite spline interpolation,

p:=proc(x0,p0,m0,x1,p1,m1,x)
local t,d;
d:=x1-x0;
t:=(x-x0)/d;
p0+(d*m0+(3*(p1-p0)-d*(2*m0+m1)+(2*(p0-p1)+d*(m0+m1))*t)*t)*t
end:

pb:=proc(x0,p0,x1,p1,m1,x)
local t,d;
d:=x1-x0;
t:=(x-x0)/d;
p0+(2*(p1-p0)-d*m1+(p0-p1+d*m1)*t)*t
end:

pe:=proc(x0,p0,m0,x1,p1,x...

Hello friends, help, I created a symmetric matrix whose graph is 17 * 17, but in trying to apply

I'm trying to compute the determinant of a 19x19 matrix, each with entries consisting of multivariate polynomials (polys in 6 vars, of degree at most 8).  Specifically I want to factor the determinant.  Running this on Maple 15 quickly gives an "object too large" error in the determinant function, after using only 700 MB of RAM in about 2 minutes.  My machine has 3GB of RAM, so I am confused as to why this object is "too large". 

 

I...

It looks like maple uses the "builtin" `*` for multiplying polynomials.

I am trying to write a new function `&*` that will multiply polynomials with non-commutative coeficients. I was wondering how I could start by looking at how the "builtin" `*` works.

Hi,

F1(S):=1/(R*S-S+1);

G:=R3*k*(1-R1)/(C*Peci);

F(S):=F1(S)*(1-R*S*G);

I want to find, whether F(S) is postive or nagetive considering the following

1. if R3>0 and Peci>0 then F(S)>0 or <0 ?

2. if R3>0 and Peci<0 then F(S)>0 or <0 ?

3. if R3<0 and Peci>0 then F(S)>0 or <0 ?

Good afternoon.

I have a problem.

I want to evaluate that equations

> aux1 := tau1-c11*x2q1(t)-c12*x2q2(t)-c13*x2q3(t)-g1-fric1;
> aux2 := tau2-c21*x2q1(t)-c22*x2q2(t)-c23*x2q3(t)-g2-fric2;
> aux3 := tau3-c31*x2q1(t)-c32*x2q2(t)-c33*x2q3(t)-g3-fric3;

when the variable fric1, fric2 and fric3 are cero and other values.

I like to watch the result in the same plot.

I am using Ode.

i send my file

Hello, I need help in integrating a procedure in Maple 10. I got a numerical solution of a 2nd order ODE as a procedure (using dsolve), and want to integrate it over x=0..1. I tried the recipe from Maple help, but it doesn't go, because I can't separate the solution from the procedure which is a triple - the argument x, the solution itself, and its x-derivative. What should I do? Thanks in advance!

First, here is my code (the last 3 lines are actually a single expression, despite being split over multiple lines below):

with(Statistics):
with(Student):
with(Student[NumericalAnalysis]):
Student[Calculus1][Roots]:
k := 8;
size:=5000;
h:=3.1;
Llimit := evalf((size-1)-10*sqrt(2*(size-1)));
Uplimit := evalf((size-1)+10*sqrt(2*(size-1)));
evalf(Int((Int(CDF(Normal(0, 1), h/sqrt((size-1)*(1/x+1/y)))*PDF(RandomVariable
(ChiSquare(size-1...

How do I update  Maple 5 version  files ( or programs)  to the Maple 14  version ? . I mean I've done a lot of programs in the  Maple 5 version many years ago and now ( using   Maple 14 version) I can't visualize my  complete equations and worst my graphics .Could you help me ?

Hi,

 

I am trying to export an array of complex numbers to MathML.

I would like the numbers to be formatted a.aa x 10^aa + a.aa x 10^aa i

Anybody know how to do this?

 

Regards.

Hi all,

I have this piecewise function:

Mr := theta->piecewise(theta>=0 and theta<=(Pi/(2*p))-(beta/2),0,theta>(Pi/(2*p))-(beta/2) and theta<=(Pi/(2*p))+(beta/2),Br/mu0,theta>(Pi/(2*p))+(beta/2) and theta<=((3*Pi)/(2*p))-(beta/2),0,theta>((3*Pi)/(2*p))-(beta/2) and theta<=((3*Pi)/(2*p))+(beta/2),-Br/mu0,theta>((3*Pi)/(2*p))+(beta/2) and theta<=2*Pi/p,0);

I want to calculate the Fourier serie of this function without giving...