Hi, I have a formula with variable unknowns, lets say p,q,r.

How do I get the answer giving me the output for different combination of input that I'm inserting?

For example : f(p,q,r):=(34p^9-7q)/r

Calculate when (p=2,q=8,r=7) and (p=3,q=0,r=3) and (p=4,q=1,r=9) and so on...

Please advice. Many thanks

Hi I have a number of 3x3 matrix which i want to combine into one big matrix. But I need to add the end of the first matrix with the start of the second matrix, the end of the second matrix with the start of the third matrix and so on, forming a big diagonal matrix. May I know how can I do that?

for example : my Matrix will need to consist : M1₁₁M1₁₂M1₁₃,M1₂₁M1₂₂M1₂₃,M1₃₁M1₃₂

which function equivalent to reduce q modulo p?

Let a sequence( a_n  ) defined by a_n=1,3,6,12,33,51,...and n=1,2,3,.... Find formula a_n?

Today, after hours of hunting a persistent bug in a worksheet, I discovered something i did not know about Maples evaluation strategy. Consider the following Maple code:

restart:
a:=1:
b:=a:
b:=2:
a;

Now the variable 'a' holds the value of 1. Now consider the case where 'a' is a vector:

restart;
a:=<1,1>:

Well,

Basically I know that.

I just hoped there is some walkaround this problem.

It seems now there is not.

The problem I am trying to solve is how I can construct an iterative procedure where function is computed from numerical solution of the ODE system (done) and then this very function is used to recalculate the solution of this ODE system.

This is my attempt to impement some sort of  gradient projection method to the optimal...

Hello,

The Maxima package has a function RATWEIGHT that can be used to assign weights to variables:

Function: RATWEIGHT (v1, w1, ..., vn, wn)assigns a weight of wi to the variable vi. This causes a term to be replaced by 0 if its weight exceeds the value of the variable RATWTLVL [default is FALSE which means no truncation]. The weight of a term...

Thanks,

However, this does not work.

My problem is not to plot U as a function of time, but somehow convert the function.

I mean, in Your solution U is defined through X(t) and thus Maple is evaluating the solution for DE every time the U is called.

However I would like to have U as function of t without precense of X(t). Since X(t) is a known procedure, there might be the way to explicitly define U as a function of t only, after the evlauation of procedure X(t).

Dear Maple users

The formula f = c/λ is expressing the frequency in terms of the velocity of light  c and the wavelength λ. Lets say given not just one wavelength, but a whole list af wavelengths. The values have units attached. I wonder if there is an elegant way to have Maple calculate the all the frequencies, eventually delivering them in a new list?

I want the units of the output reduced to SI-units,...

Maple 10 does not have intersectplots.

The first surface is x^2+y^2+z^2=9 and the second one is x^2+y^2+(z-3)^2=9

Is there a way to protect a variable or procedure from restart?

I thought we could use protect to save a variable /procedure from resetting.  I wanted to use restart in a procedure.

I'm pretty sure the answer is no, dream on and do something else.  But on the slight chance, is it possible?

Hi, could someone please help with this problem that i'm facing please?

This is that I have :

b2:=zeta->[-y(zeta)      -x(zeta)]^%T

N0:=zeta->[(1-zeta)     (zeta)]

Basically, the first one a 1x2 matrix, second one a 2x1 matrix. I'm trying to do a dot product on it expecting a scalar answer.

I need to find : B2:=zeta->be(zeta).N0(zeta)

It takes like 5 minutes before this statement comes out : "error, ...

Let A(1, -1, 3) is a point; (P): x + y + 5z = 0 be a plane; (l): x= 2t, y = -5t, z = 6t be a line. Write the equation of a line Delta parallel to the plane (P) and has a distance to (l) equal to 1.

I was thinking about this problem many times but i can not 

How can we design a wind turbine and simulate it?

Problem. Let A(-1,5) and B(-2, -2) be two points and l: 3*x - 4*y -27 = 0. Write the equation of the circle passing through points A, B and tangent to the line l.

This is my code.

Restart: with(geometry):

point(A,-1,5):

point(B,-2,-2):

point(C,5,-3):

circle(ABC,[A,B,C],[x,y]):

sort(Equation(ABC)):

tangentpc(l, ABC,C):

sort(Equation(l)):

point(T,a,b):sys:=solve([distance(T,A) = distance(T,B), distance(T,A)=distance(T,l)],[a,b]):