Operators in Ruby - Part 1

Using Operators in Ruby - Part 1 - Source for the tutorial is Ruby Programming Language by Yukihiro Matsumoto(creator of Ruby) and David Flanagan.

The blog below has a sample code with output. The sample code below with inline comments in a way summarizes the concept(refer blog title) covered as part of the book.

	true
	16
	24 -16 80 5 0
	22
	22
	2
	2
	hello world
	hello world
	1
	0
	-1
	-12
	1
	value of a1 is: 24 and value of a2 is: -16
	false
	true
	false
	true
	1

view raw op1_output hosted with ❤ by GitHub

	# Playing with operators in Ruby
	limit = 5
	p = 2 * Math.sqrt(4) < limit
	puts(p)
	k = 2 ** 4 # Exponentiation Operator..
	puts(k)
	#--------------------------------------------------------------------------------------------------------------------------------
	t = 4
	l = 20
	a1 = t + l
	a2 = t - l
	a3 = t * l
	a4 = l / t
	a5 = 20 % 4
	puts("\n#{a1}\t#{a2}\t#{a3}\t#{a4}\t#{a5}\n")
	#--------------------------------------------------------------------------------------------------------------------------------
	# Left and Right Shift operators..
	b1 = 11 << 1
	b2 = 11 >> -1 # !! check the working of this..
	puts(b1)
	puts(b2)
	b3 = 22 >> 3
	b4 = 22 << -3 # !! check the working of this..
	puts(b3)
	puts(b4)
	#--------------------------------------------------------------------------------------------------------------------------------
	# Right Shift operator also used for appending..also use of STDOUT Predefined Global constant..
	message = "hello"
	messages = []
	message << " world"
	puts(message)
	STDOUT << message
	print("\n")
	#--------------------------------------------------------------------------------------------------------------------------------
	# working of AND, OR, Tilde(~) and XOR
	c1 = 0 | 1
	puts(c1)
	c2 = 0 & 1
	puts(c2)
	c3 = ~0 # ~ for a variable x it functions as -x-1.. here its -0-1 thus op is c3 = -1
	puts(c3) # this is the way of functioning for an INTEGER...
	c4 = ~0b1011 # 11 in binary is .. 1011.. '~' converts all 0's to one and vice versa..
	puts(c4) # Thus we get.. 0100.. thats 4.. DOUBT... DO NOTE..?????????????????????????
	c5 = 1 ^ 0
	puts(c5)
	#--------------------------------------------------------------------------------------------------------------------------------
	# working of comparison operators
	print("\nvalue of a1 is: #{a1} and value of a2 is: #{a2}\n")
	s1 = a1<a2
	puts(s1)
	s2 = a1>a2
	puts(s2)
	s3 = a1<=a2
	puts(s3)
	s4 = a1>=a2
	puts(s4)
	s5 = a1<=>a2 # note the working of the comparison operator of Ruby it prints the value of 1 if a1>a2, 0 if both r equal and -1 if a1<a2
	puts(s5) # the idea behind this operator is that it a multipurpose general operator.. hence.. used in classes.. it provides convenience..
	#--------------------------------------------------------------------------------------------------------------------------------

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