Is there a cleaner way to convert an expression to float ?

Francois Maltey <[email protected]>
Newsgroups gmane.comp.mathematics.axiom.general
Message-ID <[email protected]> 
Hello, 

How can I convert an expression as sin (%pi/5) to a float ?

I can use sin (%pi/5) + 0.0, but I find it's a dirty tick !

(sin (%pi/5))::Float doesn't work.

I refuse to go inside the formula and type : sin (%pi/5::Float).

Is there an other ability ?

François, from France.
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