module ArrayArithmetic

add(arr_one, arr_two) click to toggle source

Adds the values of corresponding indices of two arrays

# File lib/array_arithmetic.rb, line 7
def add(arr_one, arr_two)
  raise ArgumentError, 'First argument is not an array' unless arr_one.is_a? Array

  result = []

  arr_two = arr_two.class != Array ? make_array(arr_two) : arr_two

  if arr_one.length != arr_two.length
    length_matched_arrays = update_array_length(arr_one, arr_two)

    length_matched_arrays[0].each_with_index do |value, index|
      result << value + length_matched_arrays[1][index]
    end
  else
    arr_one.each_with_index do |value, index|
      result << value + arr_two[index]
    end
  end

  return result
end

divide(arr_one, arr_two, sig_dig=2) click to toggle source

Divides the values of corresponding indices of two arrays Returns values as a float

# File lib/array_arithmetic.rb, line 80
def divide(arr_one, arr_two, sig_dig=2)
  raise ArgumentError, 'First argument is not an array' unless arr_one.is_a? Array

  result = []

  arr_two = arr_two.class != Array ? make_array(arr_two) : arr_two

  if arr_one.length != arr_two.length
    length_matched_arrays = update_array_length(arr_one, arr_two)

    length_matched_arrays[0].each_with_index do |value, index|
      if length_matched_arrays[1][index] == 0
        result << "Divide by 0 error"
      else
        result << (value.to_f / length_matched_arrays[1][index]).round(sig_dig)
      end
    end
  else
    arr_one.each_with_index do |value, index|
      if arr_two[index] == 0
        result << "Divide by 0 error"
      else
        result << (value.to_f / arr_two[index]).round(sig_dig)
      end
    end
  end

  return result
end

exponent(arr_one, arr_two) click to toggle source

Raises the values of arr_one to the power of the value at corresponding indices in arr_two

# File lib/array_arithmetic.rb, line 144
def exponent(arr_one, arr_two)
  raise ArgumentError, 'First argument is not an array' unless arr_one.is_a? Array

  result = []

  arr_two = arr_two.class != Array ? make_array(arr_two) : arr_two

  if arr_one.length != arr_two.length
    length_matched_arrays = update_array_length(arr_one, arr_two)

    length_matched_arrays[0].each_with_index do |value, index|
      result << value ** length_matched_arrays[1][index]
    end
  else
    arr_one.each_with_index do |value, index|
      result << value ** arr_two[index]
    end
  end

  return result
end

multiply(arr_one, arr_two) click to toggle source

Multiplies the values of corresponding indices of two arrays

# File lib/array_arithmetic.rb, line 55
def multiply(arr_one, arr_two)
  raise ArgumentError, 'First argument is not an array' unless arr_one.is_a? Array

  result = []

  arr_two = arr_two.class != Array ? make_array(arr_two) : arr_two

  if arr_one.length != arr_two.length
    length_matched_arrays = update_array_length(arr_one, arr_two)

    length_matched_arrays[0].each_with_index do |value, index|
      result << value * length_matched_arrays[1][index]
    end
  else
    arr_one.each_with_index do |value, index|
      result << value * arr_two[index]
    end
  end

  return result
end

remainder(arr_one, arr_two, sig_dig=2) click to toggle source

Calculates the remainder of corresponding inidices of two arrays

# File lib/array_arithmetic.rb, line 112
def remainder(arr_one, arr_two, sig_dig=2)
  raise ArgumentError, 'First argument is not an array' unless arr_one.is_a? Array

  result = []

  arr_two = arr_two.class != Array ? make_array(arr_two) : arr_two

  if arr_one.length != arr_two.length
    length_matched_arrays = update_array_length(arr_one, arr_two)

    length_matched_arrays[0].each_with_index do |value, index|
      if length_matched_arrays[1][index] == 0
        result << "Divide by 0 error"
      else
        result << (value.to_f % length_matched_arrays[1][index]).round(sig_dig)
      end
    end
  else
    arr_one.each_with_index do |value, index|
      if arr_two[index] == 0
        result << "Divide by 0 error"
      else
        result << (value.to_f % arr_two[index]).round(sig_dig)
      end
    end
  end

  return result
end

square(array) click to toggle source

Squares the values of an array

# File lib/array_arithmetic.rb, line 168
def square(array)
  return exponent(array, 2)
end

square_root(array) click to toggle source

Returns the square root of each value of an array

# File lib/array_arithmetic.rb, line 174
def square_root(array)
  return exponent(array, 0.5)
end

subtract(arr_one, arr_two) click to toggle source

Subtracts the values of corresponding indices of two arrays

# File lib/array_arithmetic.rb, line 31
def subtract(arr_one, arr_two)
  raise ArgumentError, 'First argument is not an array' unless arr_one.is_a? Array

  result = []

  arr_two = arr_two.class != Array ? make_array(arr_two) : arr_two

  if arr_one.length != arr_two.length
    length_matched_arrays = update_array_length(arr_one, arr_two)

    length_matched_arrays[0].each_with_index do |value, index|
      result << value - length_matched_arrays[1][index]
    end
  else
    arr_one.each_with_index do |value, index|
      result << value - arr_two[index]
    end
  end

  return result
end

Constants

Public Instance Methods