Advanced Search

Ronan

1401 Reputation

16 Badges

14 years, 40 days
East Grinstead, United Kingdom
Contact Ronan

MaplePrimes Activity


These are questions asked by Ronan

Insert Table Maple 2026...

Ronan 1401 Maple 2026
table gui editing
52 minutes ago
1 0

Insetr Table seems to default too test inpul in the cells. I am inserting it from this icon 

I can't figure out how to change the whole table to 1d or 2d math input without individually changing each cell..

What am I misssing here?

Conflict of overloaded procedure paramet...

Ronan 1401 Maple
procedure programming overload
March 28 2026
1 2

I have a example overloaded procdeure below. Due to '=' the optional input in the 2nd proc gets trapped in the 1st proc. I have tried various ways to get around this. Obviously I could make the  optional input in the 2nd proc non-optional if all else fails. Is there a way around this?

> 

restart
> 

Test:=overload([
proc(l1::{`+`,`*`,`=`, `symbol`,procedure,not(list)},
l2::{`+`,`*`,`=`, `symbol`,procedure,not(list)} ) #need to detect if 'point' is present

option overload;
if not(has([_params[2]],point)) then #if true need to go the next proc

print("1st proc ",l1," ",l2);
return
end if;
end proc,

proc(l1::{`+`,`*`,`=`, `symbol`,procedure,not(list)},
{point::list:=NULL}) #oprional input

print("2nd proc",l1,"point",point);

end proc
]):
> 

 

> 

l:=3*x+4*y-5;
h:=4*x-8*y = 5;
P:=[3,5]

3*x+4*y-5

  

4*x-8*y = 5

  

[3, 5]

 (1)
> 

Test(l,h)
> 

 

"1st proc ", 3*x+4*y-5, " ", 4*x-8*y = 5

 (2)
> 

Test(l,point=P)
> 

 

> 

Test(h,point=[2,7])
 

 

Download 2026-02-28_Q_Test_proc_Line_point_inputs.mw

How to set generic/default variables in ...

Ronan 1401 Maple
programming module default
March 26 2026
1 10

I am trying to set the default Cartesian and Parametric variables to set them golbally or locally in a command..

How do I achieve this? 

restart

interface(version)

`Standard Worksheet Interface, Maple 2026.0, Windows 10, March 05 2026 Build ID 2001916`

 (1)

TM := module () local Cartvars, Parmvars; export Cartline, Parmline; global x, y, z; Cartvars := [x, y, z]; Parmvars := [alpha, beta, rho]; Cartline := proc (p1::list, p2::list, { vars := Cartvars }) local l; global Cartvars; l := (p2[2]-p1[2])*vars[1]+(p1[1]-p2[1])*vars[2]-p2[2]*p1[1]+p1[2]*p2[1]; return l end proc; Parmline := proc (p1::list, p2::list, { varp := Parmvars }) local l; global Parmvars; l := `~`[`+`](p1, varp[1]*`<,>`(p2-p1)); return l end proc end module

TM:-Cartline([4, 3], [-8, 4])

Cartvars[1]+12*Cartvars[2]-40

 (2)

TM:-Cartline([4, 3], [-8, 4], vars = [x, y])

x+12*y-40

 (3)

NULL

TM:-Parmline([4, 3], [-8, 4])

Vector[column](%id = 36893490963638479436)

 (4)

TM:-Parmline([4, 3], [-8, 4], varp = [alpha])

Vector[column](%id = 36893490963638469564)

 (5)

NULL

Download 2026-03-26_Q_Module_Generic_Variables.mw

Equivalence symbol...

Ronan 1401 Maple
2dmath palette equivalence
February 15 2026
3 3

Does this symbol for equicalence exist in Maple ?  I can't find it in the pallets. 

If not is there a way of making it so I could add it to my favourites?

Check if matrix is skew symmetric...

Ronan 1401 Maple 2024
skew-symmetric
May 30 2025
3 3

I am trying to check if a matrix quailfies as being skew-symmetric. So I added it to it's transpose to get a matrix of zeroes. 

How do I check it  equals the ZeroMatrix?

restart

NULL

M := Matrix(3, 3, {(1, 1) = 0, (1, 2) = (40*sqrt(7)+140)/(560+sqrt(7)), (1, 3) = (80*sqrt(7)+35)/(560+sqrt(7)), (2, 1) = (-40*sqrt(7)-140)/(560+sqrt(7)), (2, 2) = 0, (2, 3) = (280-32*sqrt(7))/(560+sqrt(7)), (3, 1) = (-80*sqrt(7)-35)/(560+sqrt(7)), (3, 2) = (-280+32*sqrt(7))/(560+sqrt(7)), (3, 3) = 0})

Matrix(%id = 36893490078408578100)

 (1)

mtest := simplify(M+M^%T)

Matrix(%id = 36893490078408571348)

 (2)

LinearAlgebra:-ZeroMatrix(3)

Matrix(%id = 36893490078408566412)

 (3)

is(mtest = LinearAlgebra:-ZeroMatrix(3))

false

 (4)

NULL

Download 2025-05-30_is_Matrix_skew-symmetric.mw

1 2 3 4 5 6 7 Last Page 1 of 36