Module:Utils: Difference between revisions
round(): %g -> %f - the former uses exponential notation when it's shorter than floating point representation; it's undesirable |
m round() improved |
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| Line 47: | Line 47: | ||
-- prec defaults to 6 | -- prec defaults to 6 | ||
prec = p.eval_num_arg(prec, 6) | prec = p.eval_num_arg(prec, 6) | ||
local s = string.format(string.format("%%.%df", prec), x) | |||
-- remove unnecessary zeros | |||
if s:find('%.') then | |||
while s:sub(-1) == '0' do | |||
s = s:sub(1, -2) | |||
end | |||
-- remove unnecessary . | |||
if s:sub(-1) == '.' then | |||
s = s:sub(1, -2) | |||
end | |||
end | |||
return s | |||
end | end | ||