Computer Science Do Now due 2:50 Python real numbers, arithmetic operators, programming Classwork: COMMENTS Mr. Manzoor

Research: 

https://www.tutorialspoint.com/python/python_basic_operators.htm

https://www.includehelp.com/python/write-functions-to-find-square-and-cube-of-a-given-number.aspx

DO NOW: 

Q1 . ___________ is used to declare a real type variable:

int

long

float

char

# NOTES: See this code
mystring = None
myfloat = None
myint = None

# testing code
if mystring == "hello":
print("String: %s" % mystring)
if isinstance(myfloat, float) and myfloat == 10.0:
print("Float: %f" % myfloat)
if isinstance(myint, int) and myint == 20:
print("Integer: %d" % myint)

Q2 . ________ is arithmetic operator:

=

==

%

and

Aritmetic Operator	Description	Example
+ Addition	Adds values on either side of the operator.	a + b = 30
- Subtraction	Subtracts right hand operand from left hand operand.	a – b = -10
* Multiplication	Multiplies values on either side of the operator	a * b = 200
/ Division	Divides left hand operand by right hand operand	b / a = 2
% Modulus	Divides left hand operand by right hand operand and returns remainder	b % a = 0
** Exponent	Performs exponential (power) calculation on operators	a**b =10 to the power 20
//	Floor Division - The division of operands where the result is the quotient in which the digits after the decimal point are removed. But if one of the operands is negative, the result is floored, i.e., rounded away from zero (towards negative infinity) −	9//2 = 4 and 9.0//2.0 = 4.0, -11//3 = -4, -11.0//3 = -4.0

Python Programming Question:

Q3. Write a program that takes a number and displays its square and cube.
Program:

# NOTES: python program to find square and cube
# of a given number

# User defind method to find square 
def square (num):
 return  (num*num)

# User defind method to find cube
def cube (num) :
 return  (num*num*num) 

# Main code 
# input a number
number = int (raw_input("Enter an integer number: "))

# square and cube
print "square of {0} is {1}".format(number, square(number))
print "Cube of {0} is {1}".format(number, cube (number))

Classwork:

Q. What are comments in Python language? 

https://stackabuse.com/commenting-python-code/

Notes: 2 types

1) Hashtag

# defining the post code

salestax20 = 1.20            # defining a sales tax of 20%

2) Multi-line version needs to be enclosed in 

special quotation marks (""") to work, and not hash characters.
"""
LinuxThingy version 1.6.5
Parameters:
-t (--text): show the text interface
-h (--help): display this help
"""