log function compiles but fails on run about neo HOT 3 CLOSED

I see what happened here. It used to be the case that (in the module math) log was a function of two parameters log(x, base) with a default for base of (I think) e.

In recent versions of Nim, the default was removed, and as such expressions such as log(3.0) do not compile anymore (the base parameter is required). The way universal functions are generated expect a similar one parameter function for the scalar case. Notice that log2 and log10 are still working, since they have an implied base.

I am going to remove neo.log, since - as you point out - it does not work anymore. You can get back the functionality by doing something like

import math
import neo

proc mylog[T: SomeFloat](x: T): T = log(x, e) # or whatever base you prefer
makeUniversal(mylog)

let v1 = vector(1.0, 2.0, 3.0)
let v2 = mylog(v1)

from neo.

I see there is now a ln function for natural log.

from neo.

Thank you, added it

from neo.