The number would have to be complex, but sure you can do that: > (forn 0+10i) #t
Robby On Sun, Dec 26, 2010 at 6:04 AM, Sayth Renshaw <[email protected]> wrote: > I was doing an exmple and thinking about my expected retrun value to kow if > my function worked. > > However I don't think any value could test true therefore my function would > always be false. I do need to double check though as my math is rusty. But > you cannot square a number and have it retun negative can you? > > This is my working. > > ;;; equation : number --> boolean > ;;; to determine whether n is true for the equation (2 - n(squared) = 102) > (define (forn x) > (= (- 2 (* x x) ) 102)) > > _________________________________________________ > For list-related administrative tasks: > http://lists.racket-lang.org/listinfo/users > _________________________________________________ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/users
