I have a function (procedure) of one real variable that returns a list of 2 real numberssay f(x)=[y1,y2].  The procedure involves a lot of looping, so it's a little slow.  My questions regards efficiently plotting this function.  y1 and y2 typically differ widely, so plotting both outputs on the same plot renders the smaller one useless (essentially looks like the zero function).  (I.e. plot(f(x),x=0..10)).  But if I use 2 distinct plot commands, the...

I used to know.  But I can't find it with google and I can't remember how to do it. 

In animate how do I blank out the numbers at the top of an animation plot?

I am trying to learn more about certain maple functions using:

interface(verboseproc=2):
readlib(fsolve); #for example

This works well, but sometimes the function calls something else that I don't quite understand. An example for fsolve is when it has decided to use Newton's method:

#this is taken somewhere from inside the fsolve procedure

sol:='fsolve/sysnewton'(eqs,[r])

I can't figure out how to view the code for this...

Hello all,

How to plot a complex solution of a differential equation ( used numeric method ) ? i tryed odeplot but its only for real valued fuctions...

Someone can help me please ?

lol37.

Hi all,

How can I write a vertical etiquette (title) in parallel with y axis ?

How can I give a legende inside the plot (inside Figure) ?

How can I make symboles for different curves ?

Thanks in advance

Hello!

Since a few weeks i use Mac OS X, I downloaded the accordingly maple version from my campus server and installed it. I can start the program, but when I enter a simple instruction like plotting x^2, I get a little progress window with the headline "Kernel Connection Not Available", in the window there is: "Waiting for kernel connection" with a status bar and a Cancel-Button. The status bar runs through until about 60% and then it doesn't go on.

Can you...

Hi all,

I've just added a reply to an old thread I opened some month ago, but I don't see the thread at the top of the recent questions. Where is it gone????

Should I re-open a thread?

Thanks

ps the thread was this one: http://www.mapleprimes.com/questions/35837-Execution-Stopped-Unhandled-Signal-Caught-UNKNOWN-1#comment96090

I'm trying to solve the following ode:

[-5*e4(r)*E+3*r*e5(r)*dE-5/3*r*e8(r)*dE+2*e7(r)*E+3*e1(r)*E-4/3*r*e2(r)*dE = 0, 1/3*1/r*(3*r^2*e5(r)*dE-6*r*e4(r)*E-12*M*e7(r)*E+10*M*r*e8(r)*dE-3*r^2*e1(r)*dE+6*M*e4(r)*E-3*M*r*e5(r)*dE+6*r^2*e4(r)*dE+8*M*r*e2(r)*dE-18*M*e1(r)*E-r^2*e2(r)*dE+6*r*e7(r)*E-5*r^2*e8(r)*dE) = 0, 1/3*r*(4*e7(r)*E-5*r*e8(r)*dE-4*e4(r)*E+5*r*e5(r)*dE) = 0, r^2*e2(r)*dE-2*r*e1(r)*E+1/3*r^2*e4(r)*dE+2/3*r^2*e7(r)*dE-8/3*M*e7(r)*E+10/3*M*r*e8(r)*dE+2/3*r*e4(r...

I am trying to determine whether there is a particular order to how Maple displays complex and real solutions to equations. for example if I input

>solve(diff(x^6,x)=k,x);

There are obviously complex and real solutions to this, and the output displays both but does Maple always display the real solutions first?

Thanks.

Hi,

I am trying to solve the following optimization problem:

max ∑_ij c_ijx_ij

st.: x_ij ≤ indic(∑_uvx_uv>0), u≠i, v>j, for all i & j,

      x_ij=0..1, for all i & j, where "indic()" is the indicator function.

My problem lies in evaluation of the inequality constraint. It gives back an error about the non-numeric type of the expression.

I have a list of single digit integers

mylist:=[1,2,3];

and it is easy to use

for x in mylist do convert(mylist[x],binary) end do;

to obtain 1, 10, 11 as the result.

However if

mylist:=[1,2,25];

two values are converted sucessfully but the third produces "Error, invalid subscript selector"

whattype(mylist) gives "list"

whattype(mylist[3]); gives "integer"

Hi all,

is there some way to handle piecewise functions as if they were just another equation? In this case I´ve got a piecewise in 4 segments, one of them empty. The other segments are equations that solve a function for a variable under constraints, i.e. it shows somewhat like:

{(conditions1), q[O]=(...), (conditions2), q[O]=(...), (conditions3), q[O]=(...), else, []}

(I hope you get what I mean. The piecewise is a tad long and I wouldn´t...

Hi folks,

i am brand new to Maple so please excuse if i ask a probably simple question:

Is it possible to get data from the first row of an array into a DropDownBox?

I created an array named mat, if i type something like test:=mat(2..,1) Maple shows me the information i need in a column.

Now i want to create an Element (DropBox) in which i want to select data from a list that should show me the same information as the...

Hi,

I try to find minimum value for numbers as follow,

for i from 1 to 1000 do

x:= 1+i; 

y[i]:= 2*x+1;

a:=min(seq(y[k],k=1..1000));  print(a); od;

in this case the maple can not provide any solution

however, when i use 100 instead 1000 i obtain result as follow,

for i from 1 to 100 do x:= 1+i;  y[i]:= 2*x+1; a:=min(seq(y[i],i=1..100));  print(a); od;

could you please help me to solve this problem?

Has someone an idea how to create a hysteresis plot that models a system with hysteresis?

A simple plot can be created by plotting two arctan functions (g1,g2)

But, I'd rather need a continous function as in the second example (f1..3).