[Coco] [Color Computer] Re: OS-9 as Replacement for DECB.

[jdaggett at gate.net]

Kevin

Not sure if Basic09 uses CORDIC or not. 

But CORDIC stand for COordinate Rotation DIgital Computer.

The algorithym was developed in the early 1950's and has been 
used in many TI calculators and even the 8087 FPU by INTEL used 
it. It can be very fast and not very accurate or very slow and highly 
accurrate. 

It works on the principle that any number can be expresses as a 
complex number. It is accomplished by rotating the phase of a 
complex number. When that complex number is represented in 
base 2 or binary, all multiplications are just shifts. Thus you shift 
and add to rotate. 

james

On 2 Sep 2005 at 12:22, Kevin Diggs wrote:

Date sent:      	Fri, 02 Sep 2005 12:22:00 -0700
From:           	Kevin Diggs <kevdig at hypersurf.com>
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Subject:        	Re: [Coco] [Color Computer] Re: OS-9 as 
Replacement for DECB.
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>  Umm. Don't want to beat a dead keyboard, but doesn't a better BASIC
> already exist? I think it is called BASIC09. It has integer variables.
> It even has CORDIC transcendentals! (I don't know what it means
> either. But it sounds impressive!).