loga b = x
How to find logarithm loga b = x?
loga b is logarithm of b to base a.
x is the exponent to which you need to raise base a to get b.
loga b = x ⇔ ax = b
Symbol: log a b = log a (b) = log (b, a)
Examples:
log 2 32 = x ⇔ 2x = 32 ⇒ x = 5
log 64 8 = x ⇔ 64x = 8 ⇒ x = 0.5
log 9 81 = x ⇔ 9x = 81 ⇒ x = 2