Just an observation.

I was wondering if less obvious errors than in the below can be avoided with future versions of the AI assistant. Maybe a warning that a formula uses special Maple symbols is possible.

Formulas without dimensions are more susceptible to undetected errors.

Deflection of a circular cantilever

(a first attemp with the AI formula assistant)

_local(I)

I

(1)

AI prompt: Deflection of a circular cantilever with a  force applied at the end

Correct formular inserted ->
delta = F*L^3/(3*E*I)

delta = (1/3)*F*L^3/(E*I)

(2)

AI prompt:  Moment of inertia of a circular cross-section

Correct formular inserted ->

I = (1/4)*Pi*R^4

I = (1/4)*Pi*R^4

(3)

subs(I = (1/4)*Pi*R^4, delta = (1/3)*F*L^3/(E*I))

delta = (4/3)*F*L^3/(E*Pi*R^4)

(4)

params := R = 25*Unit('mm'), F = 200*Unit('N'), L = 1.*Unit('m'), E = 210000*Unit('N'/'mm'^2)

R = 25*Units:-Unit(mm), F = 200*Units:-Unit(N), L = 1.*Units:-Unit(m), E = 210000*Units:-Unit(N/mm^2)

(5)

subs(R = 25*Units:-Unit(mm), F = 200*Units:-Unit(N), L = 1.*Units:-Unit(m), E = 210000*Units:-Unit(N/mm^2), delta = (4/3)*F*L^3/(E*Pi*R^4))

delta = 0.1034759757e-8*Units:-Unit(N)*Units:-Unit(m)^3/(Units:-Unit(N/mm^2)*Units:-Unit(mm)^4)

(6)

simplify(%)

delta = 0.1034759757e-2*Units:-Unit(m)

(7)

NULL

The dimension of m^9 for a deflection clearly indicates an error.

A better prompt to avoid this error (caused by automatic simplification) could not be found

Download AI_formula_assistant.mw

P.S.:

This is a real example that happend to me where I did not notice the minus sign in Maples output in equation (1). The error  can easily be fixed by adding "local I" as the first statement of the document and the deflection becomes 1 mm.


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