MaplePrimes - Maple 2026 Posts and Questions

How to check if a parameter set is in SI base units

C_R — Thu, 30 Jul 2026 21:08:28 Z

For a numericial integration I want to check if all physical parameters are given in SI base units (before stripping of the units for the integration). Right now I am doing this

Parameters

(1)

H: length of rod
R: outer radius
r_sub: outer radius of heat flux
k: conductance
ρ: density
Cp: heat capacity
Q_flux: heat flux
T_amb: initial Tempearture
Nz: number of axial grid points
Nr: number of radial grid points
t_final: integration time
t_step: sampling interval for temperature fields
test_1: unit given in kilos
test_2: unit given in derived base units

(2)

α: thermal diffusivity

One way is to check whether the value of a physical parameter has not changed after simplification

(3)

(4)

Download check_for_SI_base_units.mw

I am interested in simpler ways to perform the test. The statement is quite long and not easy to understand.

Given the size of the unit package, there might be a command that I have overlooked to check whether units are in SI base units.

Have I missed test cases to make the check fool proof?

Update: A variant with split was added and attempts with functional programming

check_for_SI_base_units_02.mw

Agent Skill for Maple

OptimusMaplePrime — Wed, 29 Jul 2026 18:36:34 Z

Has anyone developed an Agent Skill for Maple compliant with the Agent Skills Specification?

I frequently use Claude Code to create and edit Maple Documents. It does fine alone, but I found adding a script to do a syntax check eliminated a lot of content errors. I also presume some instructions on how it should read the Maple documentation will improve its reliability. Before I go about writing my own Skill against the specification, I just want to check if there is already one in use within the community.

Simplifications and substitutions

Ronan — Wed, 29 Jul 2026 16:37:44 Z

I am trying to follow a series of substitutions used in a paper. I have given some examples of the substitutions. But I am having difficulty getting them to work. I know if all else fails I can manually recreate an expression with the substitution variables and then check backwards using eval(f,vals).
Would appreciate any insight on substitution techniques here.

restart

>	sidrels := [ac - b^2 = Delta, a + c - 2b = d, a - b = c__bar, a - c = b__bar, c - b = a__bar];

(1)

>	vals:='rhs=lhs'~(sidrels)

(2)

>	t1:=a + c - 2*b; simplify(t1,sidrels); #this should be d

(3)

>	t2:=Vector[column](3, [-a + b, c - b, 0]); simplify(t2,sidrels) ; # This should be <-c__bar,a__bar,0> or <c__bar,-a__bar,0,>r

(4)

>	t3:=normal(1 - b^2/(a*c));

(5)

>	simplify((5),sidrels); # This should be Delta/(a*c)

(6)

>	simplify(numer((5)),sidrels,'mindeg')/(denom((5)) ); # This works

(7)

>	t4:=[(-b^2 + bc)/(ac - b^2), (ab - b^2)/(ac - b^2)]

(8)

>	simplify(t4,sidrels,'mindeg');# this should be [(ba__bar)/Delta, (bb__bar)/Delta]

(9)

>	t5:=simplify(Vector[column](3, [3bc__bar - Delta, -3a__barb + Delta, b*(-c__bar + a__bar)]))

(10)

>	t5[3]:=simplify(t5[3],sidrels) ;#This should be b*b__bar

(11)

(12)

>	subs(sidrels[-2],b*(-c__bar + a__bar))

(13)

>	algsubs(sidrels[-2],b*(-c__bar + a__bar))

(14)

Download 2026-07-29_Q_Simplifications_and_Substitutions.mw

Recalcitrant differential equation

Alfred_F — Wed, 29 Jul 2026 09:10:23 Z

In the attached file, I'd like to solve an ODE as an exercise. Only the "series" option yielded a solution. How can the length of the result series be controlled? Is there a package that leads to a "closed" solution – even using well-known transcendental functions?

Download test.mw

How to Import Converations from ChatGPT

ianmccr — Sat, 25 Jul 2026 14:18:57 Z

Responses from the AI assistant in Maple2026 can be copied directly into a Maple Document or Worksheet, Is there a process which allows one to similarly import a external ChatGPT conversation. I have Maple MCP configured in my ChatGPT account.

How to integrate a trig function with parameter?

Aliocha — Thu, 23 Jul 2026 11:42:49 Z

How to integrate this function (n::posint) :
f := (n, x) -> (1 - cos(n*x))/(1 - cos(x))

Maple is not returning a result. It seems unable to establish the connection with the Dirichlet kernel. Is there a solution that doesn't require forcing a decomposition into a sum of cosinus?

Thank you for your help.

Best regards.