Returns the Ruby source filename and line number of the binding object.
Returns the number of rows.
Returns the submatrix obtained by deleting the specified row and column.
Matrix.diagonal(9, 5, -3, 4).first_minor(1, 2) # => 9 0 0 # 0 0 0 # 0 0 4
Called for dup & clone.
Called for dup & clone.
Add option switch like with on, but at head of summary.
Add option switch like with on, but at tail of summary.
Returns additional info.
Returns the sharing detection flag as a boolean value. It is false (nil) by default.
Sets the sharing detection flag to b.
Returns the portion of the original string after the current match. Equivalent to the special variable $'.
m = /(.)(.)(\d+)(\d)/.match("THX1138: The Movie") m.post_match #=> ": The Movie"
Returns the factorization of value.
For an arbitrary integer:
p_1**e_1 * p_2**e_2 * ... * p_n**e_n,
prime_division returns an array of pairs of integers:
[[p_1, e_1], [p_2, e_2], ..., [p_n, e_n]].
Each pair consists of a prime number – a prime factor – and a natural number – its exponent (multiplicity).
value
An arbitrary integer.
generator
Optional. A pseudo-prime generator. generator.succ must return the next pseudo-prime number in ascending order. It must generate all prime numbers, but may also generate non-prime numbers, too.
ZeroDivisionError
when value is zero.
Prime.prime_division(45) #=> [[3, 2], [5, 1]] 3**2 * 5 #=> 45
Returns the Ruby source filename and line number containing this proc or nil if this proc was not defined in Ruby (i.e. native).
Returns the Ruby source filename and line number containing this method or nil if this method was not defined in Ruby (i.e. native).
Returns the Ruby source filename and line number containing this method or nil if this method was not defined in Ruby (i.e. native).
Closes the incoming port and returns its previous state. All further attempts to Ractor.receive in the ractor, and send to the ractor will fail with Ractor::ClosedError.
r = Ractor.new {sleep(500)} r.close_incoming #=> false r.close_incoming #=> true r.send('test') # Ractor::ClosedError (The incoming-port is already closed)
Value from exception raised on the :raise event
Returns the last Error of the current executing Thread or nil if none
Sets the last Error of the current executing Thread to error
Arguments obj and opts here are the same as arguments obj and opts in JSON.generate.
By default, generates JSON data without checking for circular references in obj (option max_nesting set to false, disabled).
Raises an exception if obj contains circular references:
a = []; b = []; a.push(b); b.push(a) # Raises SystemStackError (stack level too deep): JSON.fast_generate(a)
Returns the source file origin from the given object.
See ::trace_object_allocations for more information and examples.
Returns the original line from source for from the given object.
See ::trace_object_allocations for more information and examples.