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ab *ba
Posted:
Wed Mar 07, 2007 12:03 amby Celsion
What's the simplest way of multiplying [unparseable or potentially dangerous latex formula]? Such as [unparseable or potentially dangerous latex formula]. I usually use LOIF (Last, Outside, Inside, First) to multiply 2 two-digit numbers.
Posted:
Wed Mar 07, 2007 12:12 amby hhhsmath06
just do a 2 digit foil, no trick.
q
Posted:
Wed Mar 07, 2007 12:16 amby Celsion
Thanks, I thought so lol. I just use LOIF.
Re: ab *ba
Posted:
Wed Mar 07, 2007 12:17 amby stupidityismygam
Posted:
Wed Mar 07, 2007 4:05 amby Quelloquialism
I hate to say it, but everybody is wrong.
It's not FOIL.
It's not LOIF.
It's not LIOF.
It's FIOL.
Sheesh.
=D
Posted:
Wed Mar 07, 2007 5:24 pmby bradp
when i do things like 21 x 12... i do it backwards.
20 * 10 + 10*1 + 20*2 + 2...
but I switch to starting from the front for things like 133 x 211
Posted:
Tue Apr 10, 2007 5:05 pmby zefuri
iono LIOF sounds kinda funny...i tried setting it equal to (10a+b)(10b+a) but theres nothing