[Ecls-list] Example of: The Gnu Multiprecision library for fast bignum operations.

[Chris Baker]

Armin Roehrl <armin at xss.de> writes:

> What if I need floats with let's say 50 digits accuracy or so?
> > (+ 1.2342342134187346716345712345712354176341274   
> 2.34215345233452456713248756234875623845628365)
> 
> 3.576388
> The result seems (has?)  to have far less acuracy.

There's no "bigfloat" in CL.  You can use rationals, though:

> (+ 12342342134187346716345712345712354176341274/10000000000000000000000000000000000000000000
     234215345233452456713248756234875623845628365/100000000000000000000000000000000000000000000)
71527753315065184775341175938399833121808221/20000000000000000000000000000000000000000000
> 

HTH,

cbb

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