jtjohnson's articles:

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Using the draw.ss teachpack to make 'draw-a-circle' function appear on the canvas 2 16 (10/21/2010 12:47:08 AM) comp.lang.scheme I'm stuck on this question: Use fun-for-circle to develop draw-a-circle. The function consumes a circle structure and draws the corresponding circle on the screen. Use (start 300 300) to create the canvas befo... Alt234

Stuck on another question 22 21 (10/20/2010 11:50:32 PM) comp.lang.scheme Here i'm using the draw.ss teachpack, to create a function for draw-a- circle. Now i know that the default built-in-function is (draw-circle (center radius color)), where 'center' is a posn structure, radius is... Alt234

Can someone test this function out for me? 5 21 (10/19/2010 12:08:38 PM) comp.lang.scheme Exercise 6.3.3. Provide a structure definition that represents an airforce's jet fighters. Assume that a fighter has four essential properties: designation ('f22, 'tornado, or 'mig22), acceleration, top- spee... Alt234

Solving word problems with Scheme. 1 27 (10/11/2010 1:21:40 PM) comp.lang.scheme In my CS i'm using Scheme to create functions for the problems given, and right now i'm stuck on 2 particular ones: using conditions, specifically to create an equal statement and using the 'guess.ss' teachpack... Alt234

jtjohnson's replies:

Items(3) /1

Using the draw.ss teachpack to make 'draw-a-circle' function appear on the canvas 2 16 (10/21/2010 12:47:08 AM) comp.lang.scheme I'm stuck on this question: Use fun-for-circle to develop draw-a-circle. The function consumes a circle structure and draws the corresponding circle on the screen. Use (start 300 300) to create the canvas befo... jtjohnson (20)

Can someone test this function out for me? 5 21 (10/19/2010 12:08:38 PM) comp.lang.scheme Exercise 6.3.3. Provide a structure definition that represents an airforce's jet fighters. Assume that a fighter has four essential properties: designation ('f22, 'tornado, or 'mig22), acceleration, top- spee... jtjohnson (20)

Stuck on another question 22 21 (10/20/2010 11:50:32 PM) comp.lang.scheme Here i'm using the draw.ss teachpack, to create a function for draw-a- circle. Now i know that the default built-in-function is (draw-circle (center radius color)), where 'center' is a posn structure, radius is... jtjohnson (20)