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73_grid.png added .png images of sample .eps output Feb 24, 2013
73_recursive_program.txt added sample program to draw 73 regular tessellation Feb 24, 2013
README.md when pen_color is negative, don't draw anything (penup) Feb 24, 2013
draw.cc added functions to echo graphics to .eps file Feb 24, 2013
elementary_program.cc when pen_color is negative, don't draw anything (penup) Feb 24, 2013
gpl-3.0.txt added gpl license; modified README Jan 5, 2013
graphics.cc substantial rewrite. added (simple) recursion to programming rules. s… Feb 23, 2013
input_output.cc when pen_color is negative, don't draw anything (penup) Feb 24, 2013
interface.cc substantial rewrite. added (simple) recursion to programming rules. s… Feb 23, 2013
makefile substantial rewrite. added (simple) recursion to programming rules. s… Feb 23, 2013
matrix.cc added ability to write a program Jan 5, 2013
points.cc substantial rewrite. added (simple) recursion to programming rules. s… Feb 23, 2013
program.cc supressed debug info Jan 6, 2013
random_tree.png added .png images of sample .eps output Feb 24, 2013
recursive_program.cc added functions to echo graphics to .eps file Feb 24, 2013
sample_elementary_program.txt substantial rewrite. added (simple) recursion to programming rules. s… Feb 23, 2013
sample_recursive_program.txt added sample program to draw 73 regular tessellation Feb 24, 2013
turtle.cc added detail to copyright notice in turtle.cc Feb 25, 2013
turtle_class.cc added functions to echo graphics to .eps file Feb 24, 2013