Arithmetic operators take numerical values as their operands and return a single numerical value. The standard arithmetic operators are addition (+), subtraction (-), multiplication (*), and division (/).
Operator Name Example Result + Addition x+y Sum of x and y. - Subtraction x-y Difference of x and y. * Multiplication x*y Product of x and y. / Division x/y Quotient of x and y. % Modulus x%y Remainder of x divided by y. ** Exponent x**y x**y will give x to the power yExample: Ruby arithmetic operator
puts ("add operator")
puts(5 + 6)
puts ("subtract operator")
puts(10 - 4)
puts ("multiply operator")
puts(5 * 6)
puts ("divide operator")
puts(15 / 3)
puts ("raise to a power operator")
puts(15**2)
puts ("modulo operator")
puts(14 % 5)
Output:
add operator 11 subtract operator 6 multiply operator 30 divide operator 5 raise to a power operator 225 modulo operator 4
More examples on Ruby division operator:
puts ("division in Ruby")
puts ("both operand are integer")
puts 34 / 2
puts ("both operand are integer, truncation")
puts 35/ 2
puts ("at least one operand is float")
puts 35.0 / 2
puts ("both operand are float")
puts 35.0 / 2.0
Output:
division in Ruby both operand are integer 17 both operand are integer, truncation 17 at least one operand is float 17.5 both operand are float 17.5
Unary operators:
puts +4 + -2
puts -12 + 22
puts -10 - +3
puts 12 * -7
Output:
2 10 -13 -84
Previous: Ruby Operators Precedence
Next: Ruby Comparison Operators
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