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Old 08-17-2017, 09:10 AM   #26
nerVzzz
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Join Date: Jul 2013
Posts: 17
Re: Mathematics of Poker errata/corrigenda

Ch. 11, Ex. 11.3, Optimal strategy for [0,1] Game #2, p. 119, Indifference at x1* Table

The table on this page showing the indifference at x1*, gives the full equities (showdown plus ex-showdown) for each action, while the tables on the following page use ex-showdown equities only. Thus the equation derived from the first table (eq. 11.4) should not be compatible with the equations derived from the tables on the following page (eqs. 11.5 & 11.6). Fortunately, an ex-showdown version of the table on page 119 results in the same equation (eq. 11.4) after equating <X, call> and <X, fold>, so the reader can proceed with an easy mind knowing that the following analysis is valid.

(Sorry for digging this up)
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Old 04-17-2020, 01:37 PM   #27
masiewpao
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Join Date: Nov 2015
Posts: 30
Re: Mathematics of Poker errata/corrigenda

Quote:
Originally Posted by SantaMuerte View Post
Sorry to necro this thread, I'm going through the MOP and working every problem. I read the stated correction from the link that was posted in this thread but I think it is still wrong. On page 51, the example state the pot is 75, player A bets 30; then it says player B has immediate pot odds of 30/105. Should it be he has odds of 30:105? And doesn't that convert to a probability of (2/9)?

this is the copy/paste of the "correction" off the publisher's website:

Page 51: where it says "So from an immediate pot odds standpoint, B needs to be getting
more than $75 to $30 (or 40%) to win the pot." it should be "So from an immediate pot
odds standpoint, B should call if his chance of winning the pot is greater than 30/105, or
28.5%." (12/6/06)
I know this is very old, but you are correct, it should be 2/9 or ~0.22
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Old 05-31-2020, 04:33 AM   #28
O-Mock
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Join Date: Jul 2008
Location: Germany
Posts: 343
Re: Mathematics of Poker errata/corrigenda

Here's an error I realized in Example 16.2 - [0,1] Game #5:

The table at the bottom of page 181 contains the following rows:

Quote:
For X at x1 (the indifference between X checking and betting):

Y's hand X check-calls X bets Difference Product
...     
[y2,x1] -1 -1 0 0
[x1,y1] -1 -1 0 0
...     
However, considering that the game is parameterized as

Quote:
0 < y2 < x1 < y1 < 1
X should gain one bet when y's hand is in [x1,y1], since y will always bet a worse hand in the check-call case, and will be forced to call a bet with a worse hand in the bet case. Thus the table should read like this:

Quote:
For X at x1 (the indifference between X checking and betting):

Y's hand X check-calls X bets Difference Product
...     
[y2,x1] -1 -1 0 0
[x1,y1] +1 +1 0 0
...     
However, considering that the difference and product are correct either way, this does not effect the following calculations.
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