Re: [Axiom-developer] Re: commit policy

[Mike Dewar]

On Sat, Dec 04, 2004 at 04:03:04PM -0500, Bill Page wrote:
> (4) -> draw(sin(x)^2/x^2,x=0..10)            
>    Compiling function %H with type DoubleFloat -> DoubleFloat 
>    Graph data being transmitted to the viewport manager...
>    AXIOM2D data being transmitted to the viewport manager...
> 
>    (4)  TwoDimensionalViewport: "DSIN(x)**2/(x*x)"
>                                                  Type:
> TwoDimensionalViewport
> (5) -> Cannot open
> /home/wspage/axiom-build/mnt/linux/../../share/graph/header.ps to read.
> 
> ------
> 
> The graph is drawn with the title just as show above
> starting with a 'D'. Where did that come from?

There are a few places in Axiom where an expression needs to be
linearised: this is one of them and printing parameterised types is
another.  Somebody had the bright idea of using the facility for
conversion to Fortran (which I wrote) which by default uses the double
precision names for intrinsic functions, with the results you see.  I
remember reporting this as a bug when Axiom was still an IBM project,
before it even came to NAG!

Mike.

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