Module:MathUtil

Edit the documentation or categories for this module.

---

-- MathUtil
local p = {}

function p.sign(v)
	if v == 0 then return 0 end
	return (v > 0 and 1) or -1
end

function p.printWithSign(v)
	return (v > 0 and ('+%s'):format(v)) or v
end

function p.roundnum(v, bracket)
	bracket = bracket or 1
	return math.floor(v/bracket + p.sign(v) * 0.5) * bracket
end

function p.mod(a, b)
	return a - math.floor(a/b)*b
end

function p.sum(tbl)
	local total = 0
	for _, v in pairs(tbl) do
		total = total + v
	end
	return total
end

return p