함수 log()

LN

log

math.log

Math.log

1 Excel

=LN(1)
// 0
=LN(2)
// 0.693147181

2 PHP

echo log(1);
// 0
echo log(2);
// 0.69314718055995

3 Python

import math
print math.log(1)
# 0.0
print math.log(2)
# 0.69314718056

4 Ruby

puts Math.log(1)
# 0.0
puts Math.log(2)
# 0.693147180559945

5 같이 보기

• log10