## How to expand plot display when range is large?...

When x axis range is large, the graph display still small , how to expand the graph display in large size?

## steps of limit solution...

hi. i want to show steps of a limit solution, but maple says it is unbale to show. could anybody help?

int.mw

x1=ginseng, x2=grape, f1=preference;
> x1:=5;
> f1:=3.579167+3.537500*x1-2.645833*x2-0.250000*x1*x1-0.012500*x2*x1+0.175000*x2*x2;
> plot3d (f1, x2=3..7, labels=[grape, preference], axes=boxed);

Error, (in plot3d/expression) bad range arguments: .8 = 3 .. 7, labels = [grape, preference]

## inequality solution...

Hello,

I want to solve the following inequality for "r".

Another question is that what I can say about the signature of "f(r)" and their derivatives for various positive "r"?

inequalitysolve.mw

## How to solve this system of differential equations...

Hi,

I'm trying to solve this system of differential equation, coming from the iterative process of the Elastic Curve's  solution.

The problem is that Maple returns:

risultato12 := NULL

EDIT: i think the problem is related to the non-linear equations in the system.

Any suggestion?

Here is the file

https://1drv.ms/u/s!AuhHGe410qgOm1_PdEDqkO4J1YYp

## How to evaluate a maple worksheet using DocumentTo...

The attach maple workshhet evaluates a set of values for different values of input parameters. Each time I want to change the input parameter I have to run the code. I tried to call the code using documenttools[runworksheet] option, but I could not get any output. How can I get the output for a set of input parameters by running the code once. For example similar to a for loop that gives multiple outputs for corresponding inputs.

 >
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 (1)
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 (2)
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 (3)
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## Integral not evaluated...

Integral is not evaluated.

PROBLE_13.mw

## Why not create a Feynman package?...

When are we actually going to see the  computation of the Feynman integrals behind the expansion of the Scattering matrix, including dimensional regularization? It’s been at least 5 years since it was mentioned. Thank you.

## How to not display y axis at origin and set color ...

How to not display y axis at origin and set color for different set of grid line

is it possible use more than one set of grid line at axis[1] and color different set of grid line ?

## Why does the "textplot" command not work? I just w...

Why does the "textplot" command not work? I just want to write

 >
 > af_eq := (3*alpha[2](t[1], t[2])*A^3*(1/8)-A*sigma)^2+(1/4)*alpha[1](t[1], t[2])^2*A^2 = (1/4)*f0^2
 (1)
 > alpha[1]:=0.0087;alpha[2]:=2.5871;f0:=f[0]
 (2)
 >
 > with(plots, implicitplot,implicitplot3d):
 > f0 :=0.1; alpha[1]:=0.0087;alpha[2]:=2.5871;
 (3)
 > p1:=implicitplot(af_eq, sigma = -1.2 .. 2, A = 0 .. 2,  numpoints = 20000, axes = box, axesfont=[SYMBOL, 14],labels = [sigma, A], labelfont = [SYMBOL, 16],color="Red",tickmarks=[9,12],thickness=2);
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 (4)
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## Hi, please see my question below...

I am trying to simplify the last expression, it has assumptions in it. The numerator is a negative of the denominator so I am trying to get 1, Please help.

## Unusual behaviour of line and textplot commands in...

The plots at the end of the following code output the lines when the textplot is absent - but with the textplot the lines are omitted.  Am puzzled as to why this is happening.  Square_areas.mws  Square_areas.txt

restart:
# # # # # # # # # # # # # # # # # # # # # # # # # # # #
# Areas of portions of a square
# # # # # # # # # # # # # # # # # # # # # # # # # # # #
with(plots):
with(plottools):
side:=6:A1:=16:A2:=20:A3:=32:
# Pick a point in the square: say (x1, y1)
poinC:=point([side/4,side/3]):
cpoin:=op(1,%):
x1:=cpoin[1];
y1:=cpoin[2];
lin[1]:=line([side/2,0],[x1,y1], color=black):
lin[2]:=line([0,side/2],cpoin, color=black):
lin[3]:=line([side/2,side],cpoin, color=black):
lin[4]:=line([side,side/2],cpoin, color=black):
#textA:=textplot([(cpoin[1]+side/2)/2,1,`A1`],align={ABOVE,RIGHT}):
#textA:=textplot([(1.5+side/2)/2,1,`A1`]):
tetA:=textplot([1,1.3,`A1`]):

squ:= polygon([[0,0], [0,side], [side,side],[side,0]], color=white):
# Plot without tetA - Lines are given
plots[display]({seq(lin[i],i=1..4),squ,poinC}, scaling=constrained,axes=normal);
# Plot with tetA - Lines are not given
plots[display]({seq(lin[i],i=1..4),squ,tetA,poinC}, scaling=constrained,axes=normal);
# Plot with tetA (placed  differently) - Lines are not given
plots[display]({squ,poinC,tetA,lin[1],lin[2],lin[3],lin[4]}, scaling=constrained,axes=normal);

## not solved equation...

how to say im maple
if you couldn't solve the equation F(X)=0 set X=a ?

## Can't work with Maple's engine on Matlab (Maple's ...

I updated a few days ago my Maple's version to 2018 (instead of 2017).

Unfortunatelly, since then I couldn't run Matlab code that uses Maple's engine (it worked fine before the update). I can't run any code that uses symbols.