Re: A89: Re: [OT] Pi


[Prev][Next][Index][Thread]

Re: A89: Re: [OT] Pi




i know pi is irrational, therefore there will always be another following 
number, but i was just saying, kinda off this topic, that you can do what i 
said, and i also said that i was going to try to figure out a formula to 
calculate in the folowing digits. now, how i do it:
1 hex digit could represent a 1 or 2 digit decimal number, in the ones place, 
if in the tens place, it could represent 2 or 3 decimal digits, if in the 
hundreds place, 3 or 4 decimal digits, etc...
a hex digit after the decimal point though, the first one will effect the 
first 4 decimal digits, the second one will effect the first 8 decimal 
digits, the third one will effect the first 12 decimal digits, etc...
so, you just take the nth decimal digit you want, round it up to the next 
number divisible by four, divide it by four, and that's the hex number you 
will need to use, because it is the first one that will effect your number.
ex.
what is the 13th decimal digit of the number f13.79a7?
the 23rd decimal digit is contained in the 4th hex digit, so you use 7
your formula would be 7/16^4(in decimal), now you take the 13th digit of the 
answer, and that's the number.