I hope to plot two functions f1:=x^2 ,f2:=x; and color regions in the 2d plane where f1(x) <  f2(x).  The function plot is easy but I don't know how to plot and color regions in 2D. The only solution I can think of is to sample points and use PLOT(POLYGONS())......

Is there any other ( easier !! ) ways to do this?

Thanks

I have this system:
 

This is a problem that happens with my linear algebra students and Maple every year, and I have no idea how to fix it. This is my first post so perhaps this has been discussed before. I have a 3x3 matrix: 27.6 30.2 162 3100 6400 23610 250 360 1623 When I use ReducedRowEchelonForm, the result is the identity matrix. But in fact the bottom row should zero out in the row-reduction process, and the reduced echelon form is supposed to be 1 0 3.9 0 1 1.8 0 0 0

I'm trying to plot a function whose value ranges from ~10^-10 to >1. Using plot with [mode=log] for the y-axis, I find that values below 10^-6 are not displayed. I couldn't find any mention in the help file about this. Is this a hard limit in Maple10?

I realize I can use logplot for this function, as well.

I'm a total novice in Maple. I need to work with operators for my Physical chemistry class but I don't know where to find the symbols for operators and how to work  with them  in Maple. In other words, I'm completely and totally lost. My  version of maple is 11.

Please help me,

 Gabriela Arias

<p>Hi. With the procedure below I want to evaluate the procedure 'OptEff' (which yields a pair of coordinates) for different values of one of the parameters 'delta', 'beta', 'r', 'alpha', 'm', where 'x' specifies which parameter in question, and I want the parameter to take the values given in 'x0'. I hoped that by 'for i in x0 do ...', I would be able to do this. However, all entries in L equals the first one, and corresponds to the first entry in 'x0'. I guess my use of 'subs' is not correct. Any help is appreciated.

Dear all:

   Maple help page says that POLYGONS() can only be used to plot convex polygons. I wonder how can I plot nonconvex polygons?

I tried a easy example
PLOT(POLYGONS([[0,0],[0,1],[1,1],[0.2,0.4],[1,0]]),COLOR(RGB,1,0,0));

which gives me sth. very strange plot...... :(

Thanks in advance.

Peter

Hallo everybody,

I am using maple 8. what is the most efficient way for computing the x-values corresponding to local  maxima and minima of a piecewise polynomial in a single variable x (typically an output of the spline command) over a given interval? I´ve also got another question, how can I extract the individual polynomials from the output of a piecewise function to use them for further computations? Thanks

Hi, sometimes when I am using the command Nonlinearfit for a data file to a known model equation and four fitting parameters Maple give me this warning : warning, limiting number of major interations has been reached. any one can help and explain the meaning of this warning? thanks

I need to solve P = Inertia*A*sigma[net]/(Inertia+(1/2)*A*(e+v)*d).  Everything has been defined, but v is dependent upon P.  I"ve tried rsolve (probably incorrectly) and all it gives me back is the same equation with all the variables replaced by their assigned values, still with P on both sides.

I'm defining variables in 2-D math worksheet. When I hit enter though, all that shows is a list of the defined variables, but not the variables that they've been assigned to.  For example, I'll enter "e:=0.0010;" and all that shows is "0.0010" instead of the "e=0.0010" that I need it to be.  I'm sure this is the most basic of things, but all the manuals and tutorials I've found just show it happening that way, they don't mention what to do if it doesn't happen.

 

Thanks

Inside a Proc() that I am writing I cannot do the following:

intercepts[b]:=intercepts[b+1];

where b is a number and intercepts is an array of size greater then or equal to b+1.  My confusion is that that same concept works outside of a Proc.. Am I missing something?

 

Thanks,

 

Josh

Hello,

I've changed my PC so I've tried to reinstall Maple 11 from XP to Vista (with the Vista installer of Maple). I've got the following issues:

how do u approximate matrix entries to a number of significant figures?

PLEASE HELP

x nadine

I have two sets of scatter data.  Each set has been fit by a different function which is dependent on independent variable N.  The x-axis is 1/N. 

Set 1:

Scatter data is (0.125, -4.72557), (0.08333, -4.53944), (0.0625, -4.48229), (0.05, -4.42733)

where the x-axis is 1/N with N = 8, 12, 16, 20 and the y-axis is a function in terms of N as well: -8.55704612297018*SQRT(1-0.73962210555774*COS(PI()/(N+1)))

Set 2:

Scatter data is (0.125, -1.7312), (0.08333, -1.96658), (0.0625, -2.1274), (0.05, -2.187)