Re: [stella] Polar to Cartesian Co-Ordinate Converter

Subject: Re: [stella] Polar to Cartesian Co-Ordinate Converter
From: "Thomas Jentzsch" <tjentzsch@xxxxxx>
Date: Tue, 23 Oct 2001 10:03:47 +0200
Roger Williams wrote:
> > I guess, the rounding error could be further reduced by 
> > using 16 bit value tables (for LOG only of course :-) Correct?
> Yes, the larger the log table the more accurate the results 
> will be (but they will never be quite perfect).  Remember a 
> full 16-bit log table would be 64K...

Sure, 64K is far to much data. I only meant LOG-tables with 256 (i.E.) ~11-bit (make it 16 for easier handling) values, so the results of add and sub would become more accurate, and then put the results into a larger EXP-table with (i.E.) 1024 8-bit values. 

That way, the maths should become quite accurate.

Have fun!
Thomas Jentzsch         | *** Every bit is sacred ! ***
tjentzsch at web dot de |

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