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GlobeTrotter

Mon Apr 11, 2005 7:06 pm


Quick Way to Calculate Pi

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var tempval : real := 0
var pi : real

for i : 1 .. 46340
    tempval += 1 / (i * i)
end for

pi := sqrt (6 * tempval)
put pi
put Math.PI


This works off the fact that pi^2/6 = 1 + 1/4 + 1/9 + 1/16 ...

edit: by the way, the reason I chose 46340 is because it is the largest number turing will let me use.  In practice it should be infinite in order to truly calculate pi.


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windowsall

Mon Apr 11, 2005 8:54 pm



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isnt putting
const pi:real :=3.14.... 


a hek of a lot quicker then all that i mean yeah i see where your coming from i mean programming ids math and functions but isnt it also size of code and the const aboev with proper syntax would be the less buggiest as well would it not??? im still new at this and learning but jsut curious


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GlobeTrotter

Mon Apr 11, 2005 8:58 pm



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Obviously loading turing's predefined Math.PI constant is quicker.  I'm just showing a way to calculate pi.


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Delos

Mon Apr 11, 2005 8:58 pm



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I really, really, really hope for your sake that you don't think that pi = 3.14.

The significance of this programme is not efficiency or reduced lines...it's simply very interesting maths that plays with your head when you try to figure it out.  These types of relationships between irrational numbers and rational ones is something that math people love to play with.
And believe me, CompSci is maths.  And lots of it.

BTW:  GlobeTrotter, solve this:  x^2 - x - 1 = 0...


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MihaiG

Thu Apr 14, 2005 7:35 pm



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x =  phi aka. the golden ratio = 1.61803399 muwuhhaah it was in teh Da Vinci Code....ur body= phi(measure from  hip to toe and divde that by from knee to toe) you het a number roughly around phi muwuhahahahahaha **i know it was for globe but i had too  :roll:


**edit** i wuv my sig