My Math Forum Algorithms question help

 Computer Science Computer Science Forum

 November 2nd, 2018, 11:55 AM #1 Member   Joined: Oct 2017 From: Rumba Posts: 39 Thanks: 0 Algorithms question help Can someone give me guidance how to do this question: http://prntscr.com/ldp4l8
 November 2nd, 2018, 01:15 PM #2 Senior Member   Joined: May 2016 From: USA Posts: 1,310 Thanks: 551 This is basically just arithmetic. You calculate $\displaystyle \frac{1}{2} * (11 * 10^6)^2 \approx what?$ $\displaystyle \frac{1}{2} * (60 * 10^6)^2 \approx what?$ $(11 * 10^6) * \log_2(11 * 10^6) = (11 * 10^6)\{\log_2(11) + 6\log_2(10)\} = what?$ $(60 * 10^6) * \log_2(60 * 10^6) = (60 * 10^6)\{\log_2(60) + 6\log_2(10)\} = what?$ Then you fill out the rest of the table. Thanks from sita Last edited by skipjack; November 3rd, 2018 at 09:49 AM.
November 3rd, 2018, 07:37 AM   #3
Member

Joined: Oct 2017
From: Rumba

Posts: 39
Thanks: 0

Quote:
 Originally Posted by JeffM1 This is basically just arithmetic. You calculate $\displaystyle \frac{1}{2} * (11 * 10^6)^2 \approx what?$ $\displaystyle \frac{1}{2} * (60 * 10^6)^2 \approx what?$ $(11 * 10^6) * \log_2(11 * 10^6) = (11 * 10^6)\{\log_2(11) + 6\log_2(10)\} = what?$ $(60 * 10^6) * \log_2(60 * 10^6) = (60 * 10^6)\{\log_2(60) + 6\log_2(10)\} = what?$ Then you fill out the rest of the table.
If I did for $n_2$ $\displaystyle \frac{1}{2} * (6 * 10^7)^2 \approx what?$

Would that be right?

Last edited by skipjack; November 3rd, 2018 at 09:51 AM.

November 3rd, 2018, 09:36 AM   #4
Senior Member

Joined: May 2016
From: USA

Posts: 1,310
Thanks: 551

Quote:
 Originally Posted by sita If I did for $n_2$ $\displaystyle \frac{1}{2} * (6 * 10^7)^2 \approx what?$ Would that be right?
Yes.

$\displaystyle 60 * 10^6 = 6 * 10^1 * 10^6 = 6 * 10^{(1 + 6)} = 6 * 10^7 \implies \\ \displaystyle \frac{1}{2} * (60 * 10^6) = \frac{1}{2} * (6 * 10^7) = 3 * 10^7.$

Last edited by skipjack; November 3rd, 2018 at 09:56 AM.

 Tags algorithms, question

 Thread Tools Display Modes Linear Mode

 Similar Threads Thread Thread Starter Forum Replies Last Post sita Computer Science 6 November 2nd, 2018 06:57 PM OriaG Calculus 9 June 8th, 2015 08:13 PM Schoff43 Algebra 2 November 21st, 2014 11:45 PM iKnowAll Computer Science 1 February 7th, 2014 12:16 PM vamsi Number Theory 0 February 25th, 2013 09:35 PM

 Contact - Home - Forums - Cryptocurrency Forum - Top