# fraction_sums.rb, by Martin Prout attr_reader :f, :two, :three, :four, :five, :six def setup sketch_title 'Math Blackboard' @f = createFont('Arial', 24, true) half = 1 / 2r # since ruby 2.1.0 (and jruby-9.0.0.0) third = 1 / 3r quarter = 1 / 4r fifth = 1 / 5r sixth = 1 / 6r seventh = 1 / 7r format2 = '%s + %s = %s' format3 = '%s + %s + %s = %s' format4 = '%s + %s + %s + %s = %s' format5 = '%s + %s + %s + %s + %s = %s' format6 = '%s + %s + %s + %s + %s + %s = %s' sum2 = half + third result2 = numeric_to_mixed_number(sum2) @two = format(format2, half, third, result2) sum3 = half + third + quarter result3 = numeric_to_mixed_number(sum3) @three = format(format3, half, third, quarter, result3) sum4 = half + third + quarter + fifth result4 = numeric_to_mixed_number(sum4) @four = format(format4, half, third, quarter, fifth, result4) sum5 = half + third + quarter + fifth + sixth result5 = numeric_to_mixed_number(sum5) @five = format(format5, half, third, quarter, fifth, sixth, result5) sum6 = half + third + quarter + fifth + sixth + seventh result6 = numeric_to_mixed_number(sum6) @six = format(format6, half, third, quarter, fifth, sixth, seventh, result6) end def draw background 10 text_font(f, 24) fill(220) text('Math Blackboard JRubyArt', 110, 50) text(two, 100, 80) text(three, 100, 105) text(four, 100, 130) text(five, 100, 155) text(six, 100, 180) end def numeric_to_mixed_number(amount) amount_as_integer = amount.to_i if (amount_as_integer != amount.to_f) && (amount_as_integer > 0) fraction = amount - amount_as_integer format('%s %s', amount_as_integer, fraction) else amount.to_s end end def settings size 640, 250 smooth 4 end

Experiments with ruby-processing (processing-2.2.1) and JRubyArt for processing-3.0

## Wednesday, 16 September 2015

### Fraction Sums

Subscribe to:
Post Comments (Atom)

## About Me

- monkstone
- I have developed JRubyArt and propane new versions of ruby-processing for JRuby-9.1.5.0 and processing-3.2.2

## No comments:

## Post a Comment