Hello,

I need to prepare for a final exam for a introdutory computer science course in Maple.
My professor gives us mutliple choice questions, short answer questions and wiritng some codes.

what is the most efficient way to study for my final exam? or how should i study for an computer science exam. I am not really use to preparing for such a course. 

Are there any websites that i can practice multiple choice questions?

I would appreciate any advice.

Thank you very much.

Dear friend! Hope you will be fine, I want to general matrix for m by m order. The file attached. I am waiting kind response.

Help.mw

PhD (Scholar)
Department of Mathematics

solve 30a+75b+110c+85d+255e+160f+15g+12h+120i=8000 over the positive integers

can I extract a certain non numeric degree from an expression?

for example, I want to get degree "n-1" from "x^(n-1)+y".

any thoughts? 

Hi all,

Please help me to complete my plot. I want to insert colormap in the following figure...

Download plot.mw

Hi

I have 2 sets of data and I need to plot them as histograms on the same axis(superimposed). Is it possible to do it using Maple 12? Right now I only know how to plot them in different axis.

Thanks

Hi is there a way to identify curves in your plot? Especially when you dont know it yourself?

For example, I have 10 polynomials all order 5 and up, whilst I can trial and error identify which one is which it is very inefficient.

I used to use Mathematica, and I could manually label the curves with color which allows to see which curve is which. I assume there is something of the sort for Maple?

I know this has been asked a lot, but I just want to know if there is a way to ask Maple to only show like maybe the first 1000 results instead of the whole 100000+ results? That way I don't need to overload Maple.

I googled everywhere for this and most results just tell me what diff and D does...

Basically I have a function, let's say

f:= x -> x^2

How do I turn the derivative of f into a function?

I tried

fprime := x -> diff(x^2,x)

But tihs just shows me diff(x^2,x), instead of x -> 2x

Starting with Maple 18, the Print to PDF feature caused the document page to be hard-aligned at the left margin of the page. Maple 2015 still seems to have this problem / bug.

Does anyone else have the same problem? Has a work-around been posted? Is a fix in the works after nearly 9 months?

--
JJW

WHen I type:

I get nothing, a blank box. But if I change the code slightly, by squaring both sides, then it works.

What is the reason for this. I uploaded an image of the output:  http://prntscr.com/752mtd

Hi. I am having trouble with maples command "Cross product", i don't know why it doesn't work. Can anybody help me? This is a screenshot of the problem:

How to find the determining equation for a system of fractional differential equation using Maple 15?

This question is 99% similiar to an previously posted question, but this one has a little twist(s).

http://www.mapleprimes.com/questions/200101-Solving-For-Coefficients-Of-Polynomial-Equations

Here is the sample problem. Let's say I have the following equations

e1:=(a+b+1)x^2 + (a+1)*x^4 = 0;

e2:=(a-b)*x+ (a^2 - 1)*x^3 = 0;

One can immediately tell the system is inconsistent because on x^3, we have a = -1,1 but on x and x^2 we have a = -1/2

This is precisely the problem I am facing, my e1 and e2 will eventually get bigger (bigger as in the order of the polynomial will increase) and I keep facing inconsistencies.

However if I could find a way to code it so that I can ask Maple to solve only up to a certain degree it would be great. This will eliminate any inconsistency

For example, using the system I have here, the system is consistent up to order 2 (it will always start from constants and up to a certain power). So I will ask Maple to solve the above system up to order 2.

Here is a pseudocode I have been working on.

For i = 1..2 //this might be increased, but it will of course be finite and probably won't go past 10.

For j = 0..N

//N is the degree of polynomial

f[i]:= coeff(e[i],x,j);

end

end

//the above generates the equations, below will solve it

solve( { f[i], i=1..?} ,{a,b})

Note that the pseudocode assumes e[i] are expressions and not equations set to 0 (which is what I have). Is there an "un"unapply on maple?

edit1: have to sleep  (late where I am! Will check for responses tomorrow) thank you