The task didn't prove too difficult. I used an online sudoku solver for help, and it seems 32 digits is not too many to fit in the grid. The solution I got:
Another challenge here could be only allowing horizontal and vertical steps.
Sunday, May 4, 2008
Pi Sudoku
The challenge is (was) to fit in as many digits of pi as possible in a sudoku grid. The first 0 that appears in pi's decimal expansion is in the 33rd digit (pi = 3. 1415926535 8979323846 2643383279 5028841971 ...), so we are trying to fit the first 32 digits in a 9x9 grid so that we will have a regular sudoku puzzle with a unique solution. You start with 3 at any square, then proceed to put 1 in a neighboring square (horizontal, vertical or diagonal), and so on. You cannot pass through a square once you used that square.
The task didn't prove too difficult. I used an online sudoku solver for help, and it seems 32 digits is not too many to fit in the grid. The solution I got:
Another challenge here could be only allowing horizontal and vertical steps.
The task didn't prove too difficult. I used an online sudoku solver for help, and it seems 32 digits is not too many to fit in the grid. The solution I got:
Another challenge here could be only allowing horizontal and vertical steps.
Thursday, February 28, 2008
President Hillary Clinton
I am writing this post at February 28th, 2008. As of yet, Obama and Clinton are in a tight race which Obama seems to be leading. There is still few primaries left, and supposedly there are superdelegates who can vote either way. I am writing this to guess/estimate/prophesize that Hillary will win this race, and subsequently she will win the race for the White House and be the next president of the USA.
Few things here:
1. I do not support either candidate, and I am not a voter.
2. I believe that future, just like past can be read into. If there are enough causes for an event to happen, if that event is a logical necessity, you do not need to know the situation at hand, that event is bound to happen. The way I see things, USA just is not ready to have a non-white president, and even if the voters are ready for it, there are many levels a presidential candidate can trip over an obstacle.
3. As with any statement, there's a possibility that I may be proven wrong (if Obama wins the Democratic candidacy, or if Clinton wins the candidacy however loses the race for the White House). I have the scientific view on this: If you are wrong with your hypothesis, that means one of your assumptions is wrong or you disregarded an important cause.
I will not edit this post.
Few things here:
1. I do not support either candidate, and I am not a voter.
2. I believe that future, just like past can be read into. If there are enough causes for an event to happen, if that event is a logical necessity, you do not need to know the situation at hand, that event is bound to happen. The way I see things, USA just is not ready to have a non-white president, and even if the voters are ready for it, there are many levels a presidential candidate can trip over an obstacle.
3. As with any statement, there's a possibility that I may be proven wrong (if Obama wins the Democratic candidacy, or if Clinton wins the candidacy however loses the race for the White House). I have the scientific view on this: If you are wrong with your hypothesis, that means one of your assumptions is wrong or you disregarded an important cause.
I will not edit this post.
Saturday, February 9, 2008
Wednesday, September 5, 2007
a geometry question - 4
AB = BC = CA
BD = 8
CD = 7
AD = 5
Find the BDA angle.
Answer:
120°
(The solution method other than a "brute force" method eludes me. I prepared this question 12 years ago, and I assume there was an easier method. If anybody knows such a method, let me know at karakusk at yahoo dot com.)
Tuesday, September 4, 2007
Monday, September 3, 2007
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