[A83] Re: some none-programming questions
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[A83] Re: some none-programming questions
> From: "Ronald Teune" <rtwolf@gmx.net>
>
> > > From: "Ronald Teune" <rtwolf@gmx.net>
> > >
> > > Hi,
> > >
> > > here are some questions that I've always wanted to know, nobody knew
> > > it, so I though I'll try here.
> > >
> > > 1 how to calculate pi?
> > Well, the simplest formula I think is
> >
> > PI = 4 * ( 1/1 - 1/3 + 1/5 - 1/7 + ...)
> Yeah, that's the simplest I've seen. I don't understand arctan right
> now. It should be quite simple to do something with it (making a pi
> calculator (JavaScript?) or so)
In radian mode tan(pi/4)=1 and pi/4=arctan(1). In my example, the part
between parenthesis is an approximation of arctan(1). Btw, in dutch arctan
is 'boogtangens' or 'bgtg'.
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