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Programming > Basic Misc > Re: Trig Functi...
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Re: Trig Functions

by "Auric__" <not.my.real@[EMAIL PROTECTED] > Jan 14, 2008 at 02:55 PM

On Sun, 13 Jan 2008 02:14:44 GMT, R.Nicholson wrote:

> On Jan 12, 5:03 pm, rebel <m...@[EMAIL PROTECTED]
> wrote:
>>
>> 4. Presumed loss of precision:
>>  "Now I know that you can write a DefFN for ARCOS, ARCSIN, DEG,
>>  and RAD;
>> however, you wind up loosing a point of precision and that I
>> really can't afford."
>
> If 51 bits of mantissa aren't enough, the going for 52 bits
> isn't that much better.  Better to find a quad precision
> math package, or maybe an antique 68040 Mac where some of the
> oldest Basic interpreters and compilers used double extended
> (80-bit) floating point math natively.

PowerBasic for Windows uses 80-bit floats. From the help file:
  "Extended-precision floating-point numbers are the basis of
  floating-point computation in PowerBASIC. [...] Extended-precision
  values require 10 bytes of storage each."

-- 
It insults the dead when you treat life carelessly.
 




 6 Posts in Topic:
Re: Trig Functions
Jon Ripley <no.more@[E  2008-01-10 16:22:36 
Re: Trig Functions
"Michael Mattias&quo  2008-01-12 09:11:51 
Re: Trig Functions
rebel <me@[EMAIL PROTE  2008-01-13 09:03:22 
Re: Trig Functions
"Auric__" <n  2008-01-14 14:55:01 
Re: Trig Functions
"Tom Lake" <  2008-01-14 10:06:39 
Re: Trig Functions
"Auric__" <n  2008-01-14 15:57:08 

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tan12V112 Thu Jul 24 15:26:31 CDT 2008.