Maple Questions and Posts

These are Posts and Questions associated with the product, Maple

Hi, I got a doubtI don’tknow how to make the Runge-Kutta’s and Euler’s method. The Runge-Kutta for thesecond and fourth order. I don’t know how to beginning the algoritms, I needsome help. Thanks.

I was trying to get the labels and titles in a plot to be typeset using LaTeX fonts on a computer running SUSE 12.2.  Everything worked on a Windows 7 computer with the LaTeX fonts installed.  Maple 17 would use not use the CMU Open Type fonts that were installed on the Linux computer.  After switching in the CMU True Type fonts for the CMU Open Type fonts, everything works properly in the attached worksheet on the Linux machine.

  

I executed a Jacobian function as follows X:=Jacobian([a,b,c,d,e],[y[1],y[2],y[3],y[4],y[5]])
a,b,c,d,e are initialized expressions/equations and
y[i], i=1..5 are the variables and I got the result below

Hello all,

 

 

As in title I am really bothered with result in floating number obtained from laplace(expr, t, s).

I have a target to laplace and the laplace() gives me result with floating numbers.

(ex. laplace(diff(diff(f(t),t), t), t, s) = laplace(s^2. * laplace(f(t), t, s) : the period after 2 is annoying)

 

How can I avoid or do some conversions to kill the periods?

 

When I do integration and differentiation, even of the simplest functions, it gives me incorrect answers. What could I have done wrong? Just to mention I recently installed a licensed copy on my computer. 

when i open a new worksheet its indicates it as untitled worksheet number 11. whcih means i have 10 previous untitled worksheets. where are these stored. i can not find them in the maple folder?

 

 

Hello,

 

I have quite big problem with results processing from dsolv. 

reseni := dsolve(numeric, number = nclas, procedure = PopBal, start = 0, initial = inicon, procvars = dvars, range = 0 .. tend)

If I want a results from "reseni" in "tend" 

results(tend);

I got this one:

[t = 5., n[1](t) = 0.803965539772492772e-1, n[2](t) = 0.108666500575795332e-4,.........]

Now i dont know at all how I can work...

Hello!

 

I'd like to create a table in Maple showing the values for multiple functions.

For example, I've three functions, y1,y2,y3, and I want to create a table for different values of my functions.

Is there a straightforward way to do that in Maple?

Many thanks in advance!

puckie

Hi:

I have a problem in calling a procedure. The problem that the code is working perfectly when I use it without precedure, but when I wrap it with a procedure and call the procedure I get like this problem   

Error, (in Chisqr1) invalid input: `convert/Matrix` expects its 1st argument, M, to be of type {Array, Matrix, Vector, array, list}, but received Concatenate(2, Determinant(Transpose(Jacobian([(16759.00586-A-C)^2+(19630.75977-A-4*B-C*cos(32...

Aqui les dejo La ecuación de la Recta de Euler, calculado desde su inicio hasta la comprobación con el comando EulerLine.

Recta_de_Euler.mw

The built-in Histogram command in the Statistics package only creates a Histogram from raw data, unfortunately. There is however a big number of situations, where you only have grouped data with intervals and their associated frequencies (probabilities) and want to plot the Histogram. Suppose that the intervals are of equal width and (indirectly) are specified from a starting point x0, a column-width named 'width' and the number of intervals given by n. Suppose the frequencies...

From 1 to 2013, how many   times do we use

Hi everybody,

Like the title said, I have a DC circuit (*.msim attach here).  In two differents ways, I find the current in R3 to be equal to -1A (*.mw attach here).  The M17 file is in french but the equations speak for themselfs.  Can someone help me to sort this problem out.

problème_5-4.msim

Solution_5-4.mw

Thank you in advance for your help.

I am pretty new to programming in Maple and trying to learn the language. One thing I needed was how to handle lists in a specific way. I have used many hours on this issue now and even asked questions in the Questions section. Other users helped me with clever tricks and I am grateful for that. What is left is however a feeling that one need to know a lot of rather Ad Hoc commands to accomplish your tasks. I looked for operations in the ListTools package, going through all...

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