> 64 * (1 - 1 / (powf(10 ^ (b.points - a.points / 400)) + 1)))

trying to work thru a scenario

player a wins and had 103 points before win. player b had 59 points before loss

b.points a.points
59 103

(b.points - a.points / 400)= 59-.2575=58.7425
(10 ^ (b.points - a.points / 400)) =10 ^ 58.7425 = some huge number

(powf(10 ^ (b.points - a.points / 400)) + 1)
here is where I get stuck I think. Looked up powf function, and it seems to take two parameters so are the two parameters 10 and 58.7425? Should "10 ^" be "10,"?
Does it return HUGE_VALF?