Ruby | Matrix rank() function Last Updated : 12 Jul, 2025 Summarize Comments Improve Suggest changes Share Like Article Like Report The rank() is an inbuilt method in Ruby returns the rank of the given matrix. The float values can yield enormous results due to float precision Syntax: mat1.rank() Parameters: The function does not accepts any parameter. Return Value: It returns the rank of the current matrix. Example 1: CPP #Ruby program for rank() method in Matrix #Include matrix require "matrix" #Initialize a matrix mat1 = Matrix[[ 1, 21 ], [ 31, 18 ]] #Prints the rank puts mat1.rank() Output: 2 Example 2: CPP #Ruby program for rank() method in Matrix #Include matrix require "matrix" #Initialize a matrix mat1 = Matrix[[ 1, 0 ], [ 0, 1 ]] #Prints the rank puts mat1.rank() Output: 2 Comment More infoAdvertise with us Next Article Ruby | Matrix row() function G gopaldave Follow Improve Article Tags : Ruby Ruby-Methods Ruby Matrix-class Similar Reads Ruby | Matrix real() function The real() is an inbuilt method in Ruby returns a matrix with only real part in it. The other index are assigned to zero. Syntax: mat1.real() Parameters: The function does not takes any parameter. Return Value: It returns a matrix with only real part. Example 1: CPP #Ruby program for real() method i 1 min read Ruby | Matrix real?() function The real?() is an inbuilt method in Ruby returns a boolean value. It returns true if all values in the matrix are real, else it returns false. Syntax: mat1.real?() Parameters: The function needs the matrix which is to be checked for real values Return Value: It returns true if it all values are real 1 min read Ruby | Matrix row() function The row() is an inbuilt method in Ruby returns a vector that contains all the elements in the given row-number. Syntax: mat1.row(num) Parameters: The function takes a mandatory parameter row, whose elements are to be returned in a vector. Return Value: It returns a vector containing all the elements 1 min read Ruby | Matrix round() function The round() is an inbuilt method in Ruby returns all the values of the matrix rounded to the given number of digits after decimal point. In case no parameter is passed, then 0 is assumed to be the default value. Syntax: mat1.round(num) Parameters: The function takes a non-mandatory parameter num to 1 min read Ruby | Matrix regular?() function The regular?() is an inbuilt method in Ruby returns a boolean value. It returns true if it is a regular matrix, else it returns false. Syntax: mat1.regular?() Parameters: The function needs the matrix to be checked for regular matrix or not. Return Value: It returns true if it is a regular matrix, e 1 min read Ruby | Matrix minor() function The minor() is an inbuilt method in Ruby returns a section of the matrix. It either returns a matrix by taking the starting row, end row, start column, end column or by taking the range of rows and columns. Syntax: mat1.minor(start_row, end_row, start_col, end_col) or mat1.minor(row1..row2, col1..co 1 min read Like