Numerical evaluation of sequence looks suspicious



Henry,

I think maybe you want the numer flag instead of the float flag.
An excerpt from ? ev :

   * `float' causes non-integral rational numbers to be
     converted to floating point.

   * `numer' causes some mathematical functions (including
     exponentiation) with numerical arguments to be evaluated
     in floating point.  It causes variables in <expr> which
     have been given numervals to be replaced by their
     values.  It also sets the `float' switch on.

Also, display2d : false or grind (<whatever>) can make output more
comprehensible in emails.

HTH
Robert Dodier