Maple Questions and Posts

Plots no longer remember their attributes?...

Asked by: Mac Dude 1576

June 27 2016

0 1

This is a specific Maple 2016 question: I find that plots no longer remember their attributes (like size on the screen) upon re-execution of a worksheet, even though I have set the appropriate flag in the Interface pane of the preferences.

Can someone confirm this; or am I just being dense? Is this an OS X issue? An El Capitan issue?? Maple 2015 on Yosemite behaves as expected.

Maple 2016.1 on Mac OS X 10.11.5.

Thanks,

M.D.

Error, (in fprintf) number expected for floating p...

Asked by: 9009134 110

June 27 2016

0 1

hi .please help me for this error

Error, (in fprintf) number expected for floating point format...

float.mw

>

(1)

>

$F53 := proc (t) options operator, arrow; eval(T(r, t), r = 1.5) end proc; G53 := proc (t) options operator, arrow; Re(evalf[20](F53(t))) end proc; Temp3 := cat("T-t (N=", No, ",r=1.5).dat"); fd53 := fopen(Temp3, WRITE, TEXT); i := 0; for i from 0 by 0.5e-1 to 500 do tt := i; y := eval(G53(t), t = tt); fprintf(fd53, "%10.5e %10.5e \n", tt, y) end do; fclose(fd53)$

Error, (in fprintf) number expected for floating point format

>

Download float.mw

Standart worksheet...

Asked by: hakan 45

June 25 2016

0 2

i work on Maple 18 and recently maple standard worksheet interface not run properly.

i already have uninstall and again i have same problems

will license be consumed after activate in linux i...

Asked by: LeeHoYeung 535

June 25 2016

0 2

if i install maple 2015 in amazon cloud, activate with my license

and i do not use amazon after several trial,

will the license be used and can not activate in future if i use amazon cloud again in future?

any command or configure needed when using large amount memory such as 100GB memory?

why do we need continuation in Maple...

Asked by: nur 5

June 24 2016

1 6

hi everyone..i would like to ask,why do we need to type in (101-100λ) in our maple program..why do we need the continuation..thanks in advance for answering..

How do you fix a corrupted file?...

Asked by: maple2015 145

June 24 2016

0 3

Hi

Sometimes this happen to me.

why ? and how can I fix it?

Please recover the content of the attached file if it is possible

Thanks

Check.mw

Error, (in evala/preproc3) floats not handled yet...

Asked by: farahnaz 15

June 23 2016

0 3

hi.i have a problem with gain Eigenvectors

please help me

thanks

lorenz_1.mw

Download lorenz_1.mw

What is the advantage and disadvantage of RK45 re...

Asked by: faisal 15

June 22 2016

0 0

DEAR SIR,

PLEASE HELP ME WITH THAT QUESTION

Unicode characters in GUI on linux...

Asked by: JacquesC 2401

June 22 2016

1 2

I have a gensym routine (gensym = generate symbol) which appends Chinese characters to some base symbols to create 'new' symbols. This works well on Windows, Mac and tty maple. But I get all square boxes in the linux GUI.

I know the fonts exist as, on the same machine, it works in tty. But I have no idea how to tell the GUI to go and use those fonts. Nor why it isn't.

Amusingly, if I try to paste something from the GUI as MapleMath here on Primes, in the 'paste' box, it shows just fine, but then it says it is invalid Maple.

For example, from the GUI I see

but the same thing in TTY is

(x三0不 + x三1下)^(-M)

and I just did cut-and-paste of the same thing. By this I mean that I took that output with boxes above, put it into a terminal window, re-copied that, pasted it in here, and voila!

So clearly the issue is with the GUI, and only on linux (Ubuntu 16.04).

collapsible regions or sections...

Asked by: wswain 240

June 21 2016

0 3

I watched a webinar training: Maple Training for Engineers, Researchers, and Scientists.

The file demonstrated topics and used collapsible regions with a colored band across the document and a + / - sign on the left to open/close the section or region. Different than the document gray down arrow.

I have searched all the documentation and can not find how to do this. I have done this in other programs like MathCAD to close and lock a region from viewing or editing of specific formulas.

Any help always appreciated.

Regards,

Bill

Coding the RunWindow and GetFile elements into but...

Asked by: EliPS 0

June 21 2016

0 2

I'm currently working on building a Grid Layout for a project, and I'm having trouble coding in the RunWindow and GetFile elements into buttons under the grid layout. I've gone through the overviews and examples for them, but had no luck. I'm using Maple 2016.1 for OS X.

Additionally, the structure of the code is slightly different as to how many of the example worksheets structure their Grid Layout code, since the code originated from a Maplet Builder file. I.e. in the example worksheets they would follow as:

maplet := Maplet('onstartup' = 'Action1', 'reference' = 'Maplet1',
BoxLayout('background' = "#D6D3CE", 'border' = 'false', 'halign' = 'center', 'inset' = '5', 'reference' = 'BoxLayout1', 'valign' = 'center', 'vertical' = 'false', 'visible' = 'true',
BoxColumn( BoxCell('hscroll' = 'never', 'value' = 'Button1', 'vscroll' = 'never'),
GridLayout('background' = "#D6D3CE", 'border' = 'false','halign'='center','inset'='5', 'reference' = 'GridLayout1', 'valign' = 'center', 'visible' = 'true',
GridRow('valign' = 'top', GridCell('height' = '1', 'hscroll' = 'never', 'value' = 'BoxLayout1', 'vscroll' = 'never', 'width' = '1' ))),
Window('layout'= 'GridLayout1', 'reference' = 'W1', 'resizable' = 'true', 'title' = "Maplet"),
Action('reference' = 'Action1', RunWindow('window'= 'W1'))

However the structure for the code I am working with has action at the very start of the code, follwed by the the code for the buttons then layouts/window. E.g. (the code has been shortened)

with (Maplets[Elements]):
maplet :=
Maplet('onstartup'='Action1','reference'='Maplet1',
Action('reference'='clickButton1'),
Action('reference'='clickButton9',
Evaluate('function'='plot3d(x^2*cos(y),x = -1 .. 1,y = -2*Pi .. 2*Pi)','target'='Plotter1','waitforresult'='true')),
Action('reference'='clickButton11'),
Action('reference'='clickButton12'),
Action('reference'='clickButton10'),
Button('background'="#D6D3CE",'caption'="Insert Molecular Geometry",'enabled'='true','foreground'="#000000",'onclick'='clickButton1','reference'='Button1','visible'='true'),

....

BoxLayout('background'="#D6D3CE",'border'='false','halign'='center','inset'='5','reference'='BoxLayout1','valign'='center','vertical'='false','visible'='true',
BoxColumn(
BoxCell('hscroll'='never','value'='Button1','vscroll'='never'),
BoxCell('hscroll'='never','value'='BoxLayout2','vscroll'='never'),
BoxCell('hscroll'='never','value'='BoxLayout3','vscroll'='never'),
BoxCell('hscroll'='never','value'='BoxLayout9','vscroll'='never'),
BoxCell('hscroll'='never','value'='BoxLayout14','vscroll'='never')),
BoxColumn(
BoxCell('hscroll'='never','value'='Label3','vscroll'='never'),
BoxCell('hscroll'='never','value'='Plotter1','vscroll'='never'),
BoxCell('hscroll'='never','value'='Slider1','vscroll'='never'))),
GridLayout('background'="#D6D3CE",'border'='false','halign'='center','inset'='5','reference'='GridLayout1','valign'='center','visible'='true',
GridRow('valign'='top',
GridCell('height'='1','hscroll'='never','value'='BoxLayout1','vscroll'='never','width'='1'))),
Window('layout'='GridLayout1','reference'='Window1','resizable'='true','title'="Maplet"),
Action('reference'='Action1',
RunWindow('window'='Window1'))):

Maplets[Display](maplet);

If anyone would be able to provide an example of code or some guidance I could follow that would be greatly appreciated!

Suddenly I can't open my Maple file...

Asked by: Traruh Synred 55

June 20 2016

1 24

MAPLE 15 on Windows 10

I have a file on which I can no longer open. This happened after my computer made me long on again after being gone for a little while. Maple was not running when I got back on. This is not unusal and I just clinck on the file and restart.

This time this did not work.

It comes up with a message asking me to select an input mode. Whatever I select even 'Plain text' it just hangs.

I'd send you an image, but I don't see how to do it. The button provide only allows for something with url and the snip I made is on my desktop.

I need to get thiis worksheet back. I've put a lot of effort into it.

-Traruh

Urgent question/error on eval...

Asked by: Zeus 5

June 20 2016

1 2

After running Maple in a shell file, I come up with this error that I do not understand on my Mac,

gap_long := 0.117647058823529 Pi

gap_lat := 0.0588235294117647 Pi

lat_begin := 0.441176470588235 Pi

long_begin := -Pi

lat_begin_0 := 0.441176470588235 Pi

long_begin_0 := -Pi

long_max := 0.882352941176471 Pi

lat_max := -0.441176470588235 Pi

33

Warning, `parameter` is implicitly declared local to procedure `set_par_eff`

distance eff distance_eff
im in has not
im in has not
im in has not
im in has not
im in has not
im in has not
im in has not
im in has not
im in has not
Im in has par
Im in has par
Error, invalid input: eval expects its 2nd argument, eqns, to be of type
{integer, equation, set(equation)}, but received par_eff_post
13

32

31

17

hou := 0

mini := 0

seci := 0

memory used=4.0MB, alloc=32.3MB, time=0.23

If needed, I can attach more files if my question is still a bit too cryptic. Please let me know asap as this is urgent. Thank you so much,
-Z

Errors in code ...

Asked by: iman 35

June 19 2016

0 11

hi.please help me for solve this equation

i encounter with error''

Error, (in StringTools:-IsPrefix) second argument must be a string''

equations which be solved attached as pdf file

thanks

Kernel4.mw

root.pdf

>

>	Typesetting:-Settings(functionassign=false):

>

Constants

>

landa := 0.404e11; -1; mu := 0.27e11; -1; alpha := 0.23e-4; -1; rho := 2707; -1; k := 204; -1; c := 903; -1; nu := .3; -1; E := 0.70e11; -1; T0 := 293; -1; omega := 0.1e-1

(1.1.1)

>

beta := alpha*(3*landa+2*mu):

>

(1.1.2)

>

Eq[1] := besselj(0, xi*b)*(eval(diff(bessely(0, xi*r), r), r = a))-(eval(diff(besselj(0, xi*r), r), r = a))*bessely(0, xi*b):

>

wf1 := unapply(Eq[1], xi):

(1.2.1)

>

Eq[2] := MTM:-besselj(1, eta*b)*(eval(diff(MTM:-bessely(1, eta*r), r), r = a))-(eval(diff(MTM:-besselj(1, eta*r), r), r = a))*MTM:-bessely(1, eta*b):

>

wf2 := unapply(Eq[2], eta):

(1.2.2)

>

(1.2.3)

>

U1 := -(int(r*K0[m]*(diff(K1[n], r)+K1[n]/r), r = a .. b))/(int(r*K0[m]^2, r = a .. b)); -1; U2 := -(int(r*K1[n]*(diff(K0[m], r)), r = a .. b))/(int(r*K1[n]^2, r = a .. b)); -1; U3 := (int(r^2*omega^2*K1[n], r = a .. b))/(int(r*K1[n]^2, r = a .. b))

(1.2.4)

>

m := 0; -1; for m to MM do M__m := int(r*K1[m](r, m)^2, r = a .. b); bb__m := 1/M__m end do

int(r*K1[1](r, 1)^2, r = 1 .. 2)

1/(int(r*K1[1](r, 1)^2, r = 1 .. 2))

int(r*K1[2](r, 2)^2, r = 1 .. 2)

1/(int(r*K1[2](r, 2)^2, r = 1 .. 2))

int(r*K1[3](r, 3)^2, r = 1 .. 2)

1/(int(r*K1[3](r, 3)^2, r = 1 .. 2))

int(r*K1[4](r, 4)^2, r = 1 .. 2)

1/(int(r*K1[4](r, 4)^2, r = 1 .. 2))

int(r*K1[5](r, 5)^2, r = 1 .. 2)

1/(int(r*K1[5](r, 5)^2, r = 1 .. 2))

int(r*K1[6](r, 6)^2, r = 1 .. 2)

1/(int(r*K1[6](r, 6)^2, r = 1 .. 2))

(1.2.5)

>

MM; 1; n; 1; m; 1; U1; 1; U2; 1; U3; 1; xi

-(2/3)*K1[0]/K0[7]

(1.2.6)

>	$for m to MM do for n to MM do dsys := {diff(S[m][n](t), t, t, t)+xi^2[m](diff(S[m][n](t), t, t))+(-U1U2+`η__η__n__`^2)(diff(S[m][n](t), t))+xi[m]^2`η__η__n__`^2S[m][n](t) = -(2U2bb[m]/(Pixi[m])(-BesselJ(0, xi[m]b)/BesselJ(1, xi[m]a)))q+xi^2[m]*U3} end do end do; sol := dsolve(dsys)$

Error, (in StringTools:-IsPrefix) second argument must be a string

>

>	$for m to MM do for n to MM do dsys2 := {diff(Q__mn(t), t, t, t)+xi[m]^2(diff(Q__mn(t), t, t))+(-U1U2+eta__n^2)(diff(Q__mn(t), t))+xi[m]^2eta__n^2Q__mn(t) = -2BesselJ(0, xi[m]b)U1U2b__m(1-exp(-xi[m]^2t))/(BesselJ(1, xi[m]a)Pi*xi[m]^3)} end do end do;$