Re^2: Pascal's triangle...

use constant PI => 3.141592653589793238;
[download]

since you're only calculating pi once, and inlining it, take advantage of the operating system's precision...

use constant PI => 4 * atan 1, 1;

## or as i prefer
# sub PI() { 4 * atan 1, 1 }
[download]

~Particle *accelerates*

Comment on Re^2: Pascal's triangle... Select or Download Code

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•constant PI by merlyn (Sage) on Jun 19, 2002 at 13:16 UTC
Or, to get rid of that nasty "4": `sub PI () { atan2 0, -1 }` [download] -- Randal L. Schwartz, Perl hacker	[reply] [d/l]
(jeffa) 3Re: Pascal triange... by jeffa (Bishop) on Jun 19, 2002 at 17:51 UTC
Yet another way: `use Math::Complex; use constant PI => pi(); # or just pi();` [download] jeffa L-LL-L--L-LL-L--L-LL-L-- -R--R-RR-R--R-RR-R--R-RR B--B--B--B--B--B--B--B-- H---H---H---H---H---H--- (the triplet paradiddle with high-hat)	[reply] [d/l]
Re^3.14: Pascal's triangle... by particle (Vicar) on Jun 19, 2002 at 22:14 UTC
or in kansas... `use constant PI => 3;` [download] ;-P ~Particle accelerates	[reply] [d/l] [select]
Re: Re^3.14: Pascal's triangle... by YuckFoo (Abbot) on Jun 20, 2002 at 19:23 UTC
> or in kansas... > use constant PI => 3; Actually, in Kansas we think PI should be round, use constant PI => sprintf("%1.0f", 3.14159265358979); You're thinking of Oklahoma... YuckFoo	[reply]
Re(3): Pascal triange... by gumby (Scribe) on Jun 19, 2002 at 11:45 UTC
`use constant PI => 4 * atan2 1, 1;` [download] I can recall from memory more than 700 digits of pi ;-)	[reply] [d/l]
Re: Re^2: Pascal's triangle... by theorbtwo (Prior) on Jun 19, 2002 at 22:26 UTC
BTW, that's the FPU's precision, not the OS's. (On machines that have an FPU, anyway.) /me is pedantic sometimes We are using here a powerful strategy of synthesis: wishful thinking. -- The Wizard Book	[reply]