Expressions in english manual



>   Date: Fri, 29 Nov 2013 14:15:48 +0000
>   From: Jaime Villate <villate at fe.up.pt>
>
>   On 29-11-2013 10:43, Jorge Barros de Abreu wrote:
>   > When listconstvars is true, it will cause listofvars to include %e, %pi, %i,
>   > and any variables declared constant in the list it returns if they appear in
>   > the expression listofvars is called on.
>   >
>   > Is it good???
>   > Seems confuse to me.
>   >
>   Hi Jorge,
>   even though it is correct, I agree with you that this is very confusing. 
>   How about:
>
>      When variable listconstvars is set to true, if an expression "expr" 
>   includes %e, %pi,
>      %i or any other variables defined as constant, the result of 

I think `defined' should be @code{declare}d.

>   listofvars(expr) will
>      include those constant variables.

Leo