This is the support topic for the tutorial How to multiply 55 to itself faster. Please post here if you have any questions or feedback.
13 replies to this topic
#1
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Posted 28 November 2011 - 04:55 PM
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#2
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Posted 28 November 2011 - 05:00 PM
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Nice tutorial. Simple, handy and easy to understand. +1
Edited by Panini*Hobbit@mp3, 28 November 2011 - 05:00 PM.
#3
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Posted 28 November 2011 - 05:02 PM
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That's clever! I've never come across that method before
I like it =]
#4
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Posted 28 November 2011 - 05:28 PM
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clever
#5
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Posted 28 November 2011 - 05:42 PM
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I was thought this in grade 3
#6
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Posted 28 November 2011 - 05:45 PM
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JoeDirt, on 28 November 2011 - 05:42 PM, said:
I was thought this in grade 3
I wish I was.. These kinda things were what made me love maths when I was in primary school (age 4-10/11).. Then in secondary school (age 11/12 - 16), we weren't taught any intriguing things like this.. Probably why I ended up hating maths, never going, and getting a B in my final exams lol (sounds ok but it was the lower end of my results)
#7
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Posted 28 November 2011 - 07:31 PM
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i use booths algorithm
55 in binary is 00011011
other num is x00011011 -----> right shift this number 8 times and add to the number above

for some reason i am addicted to binary language !
55 in binary is 00011011
other num is x00011011 -----> right shift this number 8 times and add to the number above
for some reason i am addicted to binary language !
#8
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Posted 28 November 2011 - 08:43 PM
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I knew this since 2nd Grade. 
But then again I knew the formula n/2(a1+an) too. Dang I was one smart kid. Still am.
But then again I knew the formula n/2(a1+an) too. Dang I was one smart kid. Still am.
#9
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Posted 28 November 2011 - 08:44 PM
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wow very cool.
My schools didn't teach anything like this either, just the good ol' multiplication tables and brute force practice, good times.
My schools didn't teach anything like this either, just the good ol' multiplication tables and brute force practice, good times.
#10
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Posted 29 November 2011 - 03:22 AM
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Wow cool ,
Thanks,
Have fun !!
Thanks,
Have fun !!
#11
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Posted 29 November 2011 - 09:51 AM
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thank you guys for the likes and rating
#12
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Posted 29 November 2011 - 10:20 AM
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#13
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Posted 29 November 2011 - 11:33 AM
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I get it now, hah. Nifty.
#14
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Posted 29 November 2011 - 11:44 AM
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Bet that those who learned this in school arent in the US...
Good Tutorial Thanks!
Good Tutorial Thanks!
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