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Ruby | Matrix zero?() function

  • Last Updated : 07 Jan, 2020

The zero?() is an inbuilt method in Ruby returns a boolean value. It returns true if it is a zero matrix, else it returns false. Zero matrix means that the matrix has all its elements as 0.

Syntax: mat1.zero?()

Parameters: The function needs the matrix to be checked for zero matrix.

Return Value: It returns true if it is a zero matrix, else it returns false.

Example 1:






# Ruby program for zero?() method in Matrix
   
# Include matrix 
require "matrix"
   
# Initialize a matrix 
mat1 = Matrix[[1, 21], [31, 18]]  
   
# Prints if zero matrix or not 
puts  mat1.zero?()

Output:

false

Example 2:




# Ruby program for zero?() method in Matrix
   
# Include matrix 
require "matrix"
   
# Initialize a matrix 
mat1 = Matrix[[0, 0, 0], [0, 0, 0],  [0, 0, 0]]
   
# Prints if zero or not 
puts  mat1.zero?()

Output:

true
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