Question

evaluate log(6250)

Answer 1

to which base?

Answer 2

no base

Answer 3

log always has a base

Answer 4

\[\log_{5}81\]

Answer 5

If not given, the base is usually assumed to be 10

Answer 6

I disagree, in the realm I work, it is assumed to be 2. This is because i work in computer science. Often in mathematical realms, the assumed base is e. Perhaps at high school or lower it is assumed to be 10, though.

Answer 7

except in older texts, ln denotes log_e, log denotes log_10, log_2 denotes base 2 (unless it is understood by context to be some other base)