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I set a physical model for my reseach,

equ1 := x^4-5*x

equ2 := 1/x+x^2+3

x is a function of time t and it meets diff(x(t), t) = equi-equ2.

I want to plot the curve of x(t) varying with time

When I use the following command

DEplot({x(0) = 0, diff(x(t), t) = equi-equ2},x(t), t = 0 .. 20)   it shows: Error, (in DEtools/DEplot) called with too few arguments

Who can tell me what is wrong with my calculation? Thanks

Hi there,

is it possible to have the legend of a pointplot accepting arguments?

Say I have an array of 3 values (e.g. p:=[1.5,2,2.5]) representing a given parameter for a function. When representing this function by means of a plot, I would like the legend (legend="Parameter " + value in array; legend=["Parameter", "Parameter", "Parameter") to accept the contents of the array, without entering the values manually:

Parameter 1.5

Parameter 2

Parameter 2.5


How can this be achieved?




When I plot an expresion I would the graphics be framed. What I am getting, instead, is the curve and the axis, whith no frame at all. How can I force Maple to make the graphic surrounded by a frame? 

Hi there,

I am trying to display multiple pointplots in the same plot. I would like to either distinguish the plots by their color or by the symbol (square, traiangle, circle) at each data-point. May be both, although I ignore whether using symbols at data-points is possible in Maple.

The plot i would like to achieve is this: 

Maple says that my points are not in the correct format:


My data array N has two parameters, and the free variable. The two parameters are also varied over a certain range. For plotting purposes, I would like to have one of the variables fixed, select three parameters for the other variable, and plot all data-points for them.

The resulting data array N seems to be OK, but I am aware that my attempt for plotting multiple arrays may be wrong. May be pointplot is not even the best choice.


Any ideas?


Thank you,




  Given this equation:       (chi^2*(xi^2-1)^2+1-Omega^2)*(xi^2-Omega^2)-xi^2 = 0

   chi^2=1/1200;  I want to plot xi vs Omega. Can anyone help me out?

Hi Maple friends.

I created this table using the table component from the componwnts palette. But I can't plot it - Maple just plots the second column as horizontal lines. I want the first column to be the x values, and the second column to be the y values. How can I plot it? 

Also, the table component automatically generates the the incremental values starting from 1, so I only need to create a 1 column table. But how can I plot the table, using the auto generated values?

Thanks in advance.

EDIT: There is a 'embedded plot window' component, which may somehow plot data in the table component, but I can't get it to work. I've tried dragging the table component into it with no succes.


So this is the errorcode I get and my code is

> r := (x1, y1, x2, y2) options operator, arrow; (sqrt((x2-x1)^2+(y2-y1)^2))^2
> hreg := (A, C, x) options operator, arrow; A*x+C
> hpconf := (Q, x1, y1, x2, y2) options operator, arrow; Q*(1/4)*ln(2.25*b*K*t/(S*r(x1, y1, x2, y2)))/(3.14*K*b)

> he1 := (x, y, C) options operator, arrow; hreg(A1, C, x)+hpconf(Q1, x, y, xp1, yp1)+hpconf(Q2, x, y, xp2, yp2)+hpconf(Q3, x, y, xp3, yp3)+hpconf(Q4, x, y, xp4, yp4)
> C1 := solve(he1(-75, 0, C) = 20, C);

> plot3d(he1(x, y, C1), x = -75 .. 75, y = -75 .. 75, style = surfacecontour, axes = box);

I have defined all the constants, and squareboxes shouldn't be needed for the plot, right?


According to kernelopts(version), I am using Maple 16.02, X86 64 LINUX, Nov 18 2012, Build ID 7888210 , having just updated

Maple 16.

I have a Maple worksheet with some graphs of 10^5 data points. When I export the worksheet to a pdf for inclusion in a LaTeX document (with pdfpages package, this recognizes page breaks), the file is around 100 Mb, much larger than I would like.

It seems that the file is large as a figure in the pdf is not just an image, the pdf seems to contain all of the information necessary to plot each data point individually.

Is there some way to encourage Maple 16 to treat figures as bitmaps (or something similarly much smaller than the original figures) upon exporting a worksheet to a pdf? I'll be happy for any suggestions.


1. This question was originally for Maple 16.00. Updating to 16.02a has not solved the problem.

2. I am suspicious that there is some bug in how Maple 16 exports figures made with "plot" to a pdf file.

When I try various methods of compressing the pdf that I've seen on the web, such as with pdftk 1.44, or ghostscript 8.70 or 9.07,  or pdf2ps followed by ps2pdf ,

error messages are returned. For example using pdftk:

pdftk input.pdf output.pdf


"Done. Input errors, so no output created"


Hi all;

I have following program for plotting numerous function using hybrid functions.

if g1(t) is arbitrary function and g2(t) is its approximate by hybrid functions, I want to have a table of g1(t)-g2(t) for different value of t. but the result is without numeric values. what part is wrong????

best wishes


Mahmood   Dadkhah

Ph.D Candidate

Applied Mathematics Department

I need to make two graphs.  1st take the equation y= ln3x+3 and graph it and it's derivative.  Then find the equation of the tangent line and the normal line to the given function at x=e   Then I need to create a single graph containing the function, the tangent line, and it's normal line.  Any pointers or help would be greatly appreciated.  I can graph the equation and it's derivative ok but I don't know how to make a graph with multiple stuff on it.  Thanks

How do i use d'Alembert formula to solve,plot and animate with Maple software

I remember to have seen and used a command to make the graph of the output of FeynmanDiagrams but I can not find more sample files. Someone can tell me how to do (plot a Feynman graph using the result of FeynmanDiagrams).

Thanks and sorry for my english.

bifurcation diagram...

September 29 2014 sarra 195


I have a non linear ode with sinosoial term, (sin(x)).

How can we Analyse the system and plot the bifurcation diagram:


Thank you very much for your help.


I want to draw a contour plot like the pic below which the relating value of each curve is specified on several parts of the curve. Can anyone suggest a way? :)

As an example do it with the following function:





E     Average
 0      1.8
 1      1.6
 2      1.2
 3      0.8
 4      0.4
 5      0.2
 6      0
 7      0
 8      0
 9      0


E=0   f(E)=1.8  = 1/A+1    A=-0.444    kt is unknown. Hence I try many numbers.

This is my code



I have a problem.  A is negative. The denominator would be zero.

This is the theory.

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