FP20211018

"""
variables
constants
operators / operadores
operands / operandos
assignment operator / operador atribuição
arithmetic operators
boolean operators
relational operators
"""
a = 3 #assignment
b = a #3 #infix operator
#"array" - adjacent memory .... NumPy
#c = list[f3(f2(f1(data)), 2, 3)]

d = 3 ; e = 4 ;

def infiniteCycle():
    while(True):
        pass
#def end

#d = infiniteCycle()

"""
math operators
"""
a = b = 3 #cascade assignment
a = 3 ; b = 2
aSum = a + b #5
#aConcatenation = "a"+"b" # "ab"
aDifference = aSum - 2 #3
aMultiplication = aDifference * 2 #6
#print ("--"*6)
realDivision = a/b #1.5
integerDivision = a//b #int(a/b) #1
powerOp = a**b #3**2 = 3*3 = 9
remainderOfTheIntegerDivision = 3%2 #1 #thousand applications
#root of r-index
#n**(1/r)

sentence = phrase = sequenceOfSymbols = "" #double-quotes delimiters
sentence = phrase = sequenceOfSymbols = '' #single-quotes delimiters
a = "\"" #escape of double-quote
a = '"'

a = "All men are mortal."
b = "Socrates is a man.\n"
c = a+b #concatenation
print (c, end="") #standard output
print (c)

c = "_.-^-."*12 #multiple-concatenation
print (c)

#stored-program computers Manchester MK 1
#American Standard Code for Information Interchange
#ASCII "ask-he"
#2^7 = 128 #ASCII
#2^8 = 256 #e-ASCII
#2^16 = 65536 UNICODE

print (2**16)

"""to know the e-ASCII table"""
iSymbolCode = 65 #.. 255 #255-0+1 = 256
strCode = str(iSymbolCode)
strSymbolCode = chr(65)
print ("Code: "+strCode+" Symbol: "+strSymbolCode)

iSymbolCode = 66 #.. 255 #255-0+1 = 256
strCode = str(iSymbolCode)
strSymbolCode = chr(66)
print ("Code: "+strCode+" Symbol: "+strSymbolCode)

asciiCodes = range(256) #collection 0..255
for iSymbol in asciiCodes: #walk over the collection
    strSymbol = str(iSymbol)
    strCorrespondingRepresentation = chr(iSymbol)
    strBothCodeAndSymbol = \
        "Code: "+strSymbol+" Symbol: "+strCorrespondingRepresentation
    print (strBothCodeAndSymbol)
#for