Where is the integration constant?

[amindanial]

Why integration of x gives 0.5x^2 without the integration constant? Whereas other CAS apps such as Geogebra, which I think it has the same CAS engine as Prime, adds an integration constant.

[rawi]

I think it is left out because since you can choose it whatever you like it is useless. As well other CAS calculators (TI inspire CX II-T CAS and Casio CP 400) do not use it.

[parisse]

You can force an integration constant with a 3rd arg, e.g.
integrate(x,x,c)

[Albert Chan]

(11-29-2024 04:44 PM)parisse Wrote:  integrate(x,x,c)

Is there an advantage doing this, rather than integrate(x,x)+c ?
With int(x,x,c), symbol c is 'generated' even if c is already used.

CAS> c := 10
CAS> int(x,x,c)      → 1/2*x^2 + c
CAS> eval(Ans)      → 1/2*x^2 + 10

Is this a feature, or a bug?