Recursion help or help with procedure result

[ang2018]

I want to write a factorial routine using recursion but don't understand the procedure result block.

essentially i want to see if n=1 then return 1 else return n*f(n-1)

i am going crazy trying to do this in appinventor syntax. can anyone give a quick example?
thanks!

[Patryk_F]

Are you asking for such a function?

[ang2018]

Sort of. That is a factorial function but I am trying to write it with recursion and not a loop.
Can I have two result returns in a function? want to write essentially

function fac(n)
if n==1 return 1
else return n*fac(n-1)

[Taifun]

@ang2018

function fac(n)
if n==1 return 1
else return n*fac(n-1)

you can do this, but it is still only one return value...
see also this example

How to use math formula given

I ran into some trouble crossing the equator of the tank, and had to improvise. I couldn't find any formula using arcsin, so I used arccosine formulas, which were accompanied by good explanations. https://www.mathsisfun.com/geometry/cylinder-horizontal-volume.html works up until the equator (yielding negative area over the equator), so I flipped the problem (water<==>air) for height > radius, coming up with a recursive formula. I skipped the part where you convert from cubic centimeters (cm…

and don't hesitate do do a search in the community...

Taifun

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