Math help

amount youre contributing / total pot size after you contribute

you want to figure out the percentage at which you break even (ie, at which percentage your expectation is zero)

so suppose that percentage is p, and you're getting a:b odds.
then your expectation is ap-(1-p)b
and you set this to zero, and solve for p

ap-(1-p)b = 0
ap = (1-p)b = b-bp
ap+bp = b
p = b/(a+b)

so like for the 66 to win 90 itd be 66 / (66+90)

sweet, thanks guys

lol i read the post and was like "lol another microstakes noob trying to figure out simple stuff"
then i "wtf" as i see who was it

didn't we spend like 2 hours on this a few months back? You forgot? =(

Other questions:
-In general, if you have a dominating unpaired hand, and your villain has the dominated unpaired hand, the odds of flopping that pair are the same as a set. (2 cards left).
-If you have AA, he can have 2 aces *4 kings, so 8.

^picture gets a bit muddled if its something like AK and KXX flop right? I remember seeing a formula somewhere, just hoping to get a hang of it again

and yah, I forgot. Math is meh

when it comes to combinations nothing wrong with just simple count it down

AA on Kxx board, how many AK?

2 Aces left, 3 Kings left... 2x3 = 6 combinations

AK on Kxx board, how many AK?

3 Aces left, 2 Kings left... = 3x2 = 6 combinations

AK on Kxx board, how many KQ?

2 Kings left, 4 Queens left... 2x4 = 8 combinations

etc

sweet, thanks!

vs calling range of 55+ AJ+, KQ+ 0=x*600 + (1-x)*(0.39596*(2615+600)) - (0.604x2610) 0=x*600 + (1-x)*(1273.0114 - 1576.44) 0=x*600 + (1-x)*(-303.426) 0=x*903.426 - 303.426 -903.426x = -303.426 x = 0.3358 or 33.6% Seat 3: gawdawaful (2760 in chips) Seat 5: grompok (2980 in chips) Seat 6: 3degree2 (3260 in chips) 3degree2: posts small blind 75 gawdawaful: posts big blind 150 *** HOLE CARDS *** Dealt to gawdawaful [Jh As] grompok: raises 225 to 375 3degree2: folds gawdawaful: raises 2385 to 2760 and is all-in grompok: calls 2385