Thank you so much. I was able to figure it out. I don't know why I didn't think of utilizing the symbol=? After re-reading the error and not over thinking it I was able to see what I needed to do
Jeremy D. Duenas 714.864.9686 On Mon, Jan 31, 2011 at 8:25 AM, Jeremy Duenas <[email protected]> wrote: > Ok so I wrote and compiled my code: > > [code] > ;;check-color: symbol symbol symbol symbol -> symbol > ;;consumes four colors. 1 player picks two colors, the 2nd player guesses > the colors. check-color simulates the 1st players checking action. It > consumes four colors. The 1st two arguments to check-color are "targets" and > the latter two are "guesses". the function produces one of the four > answers. > ;;example: (master check-color) = 'Perfect > ;; (masster check-color) = 'OneColorCorrectPosition > ;; (master check-color) = 'OneColorOccurs > ;; (master cheeck-color) = NothingCorrect > (define t1 'red) > (define t2 'green) > > (define (check-color t1 t2 g1 g2) > (cond > [(and (= t1 g1)(= t2 g2)) 'Perfect] > [(or (= t1 g1)(= t2 g2)) 'OneColorOccurs] > [(or (or (= t1 g1)(= t1 g2))(or (= t2 g1)(= t2 g2))) 'OneColorOccurs] > [else 'NothingCorrect])) > [/code] > > It compiles correctly, but then when I run it using the master.ss > teachpack as told (master check-color) and choose two colors, I get the > error: > =: expects type <number> as 1st argument, given: 'green; other arguments > were: 'red > > can someone explain what I did wrong and how to correct this. > > > Jeremy D. Duenas > 714.864.9686 > >
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