Running DrScheme, Assignment 2: Tiled Pyramids and Checkerboards
Fall 2005

Create a Scheme directory: mkdir Scheme, cd Scheme
To start Scheme type: "drscheme" or choose from the Applications/Programming menu
- The upper window is used to edit your program file
- The lower window is used to enter commands to run functions/programs
- You need to click on the "Run" button ("Execute" on Windows systems) to load the program
  code into the interpreter.
Choose the correct Language (see the Language menu): Pretty Big in the PLT suib menu
Choose the turtle Teachpack (see the Language menu): Add teachpack, add turtles.ss

Try out this program:

   Load this into the upper window of DrScheme.
   Click on the "Run" ("Execute" in Windows) button, upper right.
   In the lower window (or add these as commands in your program)
   (pyramid 5 10)
   (clear)
   (move -198)
   (pyramid 20 10)

Scheme assignment 1, part 1: Write function "rowOfSquares" to draw a row of n squares with variable size
- (rowOfSquares 20 5) draws a row of 20 squares of length 5
- In your function, make a call to function drawSquare

Scheme assignment 1, part 2: Using rowOfSquares, write tiledPyramid, 2 versions:

    Version 1: top - 1 brick, 2nd row - 3 bricks, 3rd row - 5 bricks, nth row - 2*n - 1 bricks

    Version 2: top - 1 brick, 2nd row - 2 bricks (centered), 3rd row - 3 bricks centered, nth row - n bricks centered

Scheme assignment 1, part 3: Using rowOfSquares, write checkboard to generate an n by n board

Running DrScheme, Assignment 2: Tiled Pyramids and Checkerboards Fall 2005

Running DrScheme, Assignment 2: Tiled Pyramids and Checkerboards
Fall 2005