f := sec(x)^2;
Int(f, x = 0 .. 5*Pi*(1/4)) = int(f, x = 0 .. 5*Pi*(1/4))

I enter the above in Mape 12 Student Edition, and the answer is infinity, but it's obviously 1.

How can I get Maple to display the obvious ?

How could I plot bifurcation for a nonlinear system using maple? For example I have the following nonlin. syst: x'=a*b*((x^2+c^2)/(x^2+1))-d*x y'=a*e*((y^3+f^3)/(x^3+1)*(g*x+1)-y for a, b c, d, e, f,g be given ; I want to get bifurcation by some parameter, e for instance.

I am using the readline command to read in values from a text file, but they are coming in as strings. How can I convert these to integers?

I am using Maple 10 and i want to export as "jpg" files multiple columngraphs. These columngraphs are generated from:

>for k  from 1 to 100 by  5 do

ColumnGraph(points[k],color=blue,axes=BOXED,thickness=2,print(t=k),view=[0..26,0..0.1]);

od:

 

Then i use the command :

>for k  from 1 to 100 by  5 do

plotsetup(jpeg,plotoutput=`k.jpg`);

od;

 

but exports only one file called "k.jpg" .

In a concurrent thread I posted the following simplification procedure

  Tryhard:= proc(expr)
    global E_in_Tryhard;
    subs(pow= `^`,
      codegen[optimize](subs(E_in_Tryhard= expr, ()-> E_in_Tryhard), tryhard))()
  end proc;

and now put into an extra blog post, as it might be helpful for others. Note, that this does not work on all constructs in Maple and certainly the package is a bit dated.

Hello clever people,

Here's an easy question for you all I'm sure (though as a novice I've been stuck on this for hours).

Why is it that when I'm using Maple 12 some of my assignments don't seem to work while others do? Most of the time I don't have a problem assigning matricies and vectors but quite often Maple doesn't seem to want to recall the contents of a variable when performing operations.

Dear all,

     How can I insert mathematical notaions in Labels when plotting figures ?  I never encounter this problem, but now it is urgent for me to resolve it.  In labels, I depict the meaning of axes and need to use some mathematical notatioons.   If  someone  knows how to realize it , please inform me ASAP. Thank you very much ! 

Kindly regards,

Yours

huang 

Im trying to use a symbol(phi) in a plot's legend, only instead of being displayed it shows %varphi; Is there anyway to force it to display the actual symbol? Thanks

Is this possible? Maybe some kind of option Ive been missing? Id like todo this to a couple of plots and would still like to see them on screen. Thanks

Hi,

 

this problem has been bugging me for quite some time now, and I have seen other people struggling with it as well.

When I work in Maple 11 and I want to insert a new section, he jumps all the way to the bottom and puts the new empty section there, where I don't want it to be.

I've also had similar things when I press the "T" to insert Text.

 

How can I solve this? Many thanks!

Hello,

 

It has been about 1 year since I have posted so I am a bit rusty.  I just uploaded a .mw file & thought I followed the instructions for creating a link to my file in the body of this message, but it doesn't look right & I would appreciate any pointers as to how I might do it right.

 

The reason for my post is that, as demonstrated in the uploaded file, I can't seem to get labelfont to work correctly.  When I include

font = [TIMES,BOLD,12]

it works fine but when I put in

Hello, I have an equation: y^2=4x^2 (My equation is more complicated. This is just an example) I want to define a function: f(x) = y1 - y2, where y1 and y2 are the roots of the equation in a descending order and then to plot f(x). I tried to do it as follows: S := (x) -> sort([solve(y^2 = 4*x^2, y)],`>`) C := (x) -> S(x)[1]-S(x)[2] plot(C(x), x = 0 .. 5) and I had an error "Error, (in S) invalid arguments to sort" When I remove the `>` option in "sort" it works.

Hi all,

I have been asked how a calculator works to calculate say exp(5) and did Maple use the same scheme.  I am sure it's a question of series but I am sure it's not a power series.  The question seemes stupid and I am ashamed for not knowing it but that's life.

 

Mario

Dear all

Can anyone suggest how the following code could run faster?