I have these questions from a book:
show that if f(n)=theta(log2 n) then f(n)=theta (log10 n)
show that if f(n)=o(g(n)) and g(n)=o(f(n)) then f(n)=theta(g(n))
how to prove? can anyone help me with it?
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I have these questions from a book:
show that if f(n)=theta(log2 n) then f(n)=theta (log10 n)
show that if f(n)=o(g(n)) and g(n)=o(f(n)) then f(n)=theta(g(n))
how to prove? can anyone help me with it?
The first proposition, do you mean:
?
To show the first statement, write the definition ofand note that
.
The second statement is a little odd because I believe that if f(n) = o(g(n)) and g(n) = o(f(n)), then f and g must be 0 from some point. However, the fact that g(n) = o(f(n)) implies that g(n) = O(f(n)), and this is almost the same as(up to absolute value).
yes, that's what i meantQuote:
thanks for help :)Quote:
To show the first statement, write the definition of http://latex.codecogs.com/png.latex?%5CTheta and note that http://latex.codecogs.com/png.latex?...Clog_%7B10%7Dn.
The second statement is a little odd because I believe that if f(n) = o(g(n)) and g(n) = o(f(n)), then f and g must be 0 from some point. However, the fact that g(n) = o(f(n)) implies that g(n) = O(f(n)), and this is almost the same as http://latex.codecogs.com/png.latex?...%28g%28n%29%29 (up to absolute value).