How to do Log on calculator? (1 Viewer)

[kangarulz]

hi there, i havent done logs and exponentials yet, at the moment doing integration...
and i need to answer this question using the simpsons rule:

log (little 10) xdx, where a=3, b=5 and f(x) = log(little 10)xdx

i don't know how to do log questions in my calculator either, i looked at an example where it was like log(little2) 64 = 6
but i dont know how to type in the 2 and 64 so that it equals 6, if u get what i mean?
thanks

 

[pLuvia]

On the calculator the "log" button automatically has the base 10 to it, you cannot do log to the base x [another number]. The rule to doing:
log₂64=6
2⁶=64
The rule is"
log^xy=z
x^z=y

If you want to find the answer to log₂64 you do, log₁₀64/log₁₀2=6

The simpsons rule is:
∫{b-->a}f(x)dx=h/3[f(a)+4(f(x₁)+f(x₃)..)+2(f(x₂)+f(x₄)..)+f(b)]
Where h=b-a/n
n being the number of intervals

By applying that rule you can find your answer