No#program to calculate simple intrest 
P=1000
R=1
I=2
si=P*R*I/100 #simple intrest
print("simple intrest is",si)

#program to find area of a circle
r=2
pi=3.141
a=pi*r*r#area of a circle
print("area of a circle is ",a)

#program to find area of a triangle
b=2
h=4
a=1/2*b*h#area of a triangle
print("area of a triangle is",a)

#program to find area of rectangle
w=5
h=3
a=w*h#area of rectangle
print("area of rectangle is",a)

#program to find a parameter of a square
a=2
p=4*a#parameter of a square
print("parameter of a square is",p)

#program to find circumference of a circle
r=3
pi=3.141
c=2*pi*r
print("circumference of a circle is",c)

#program to temprature in celsius to fahraniet
celsius=37.5
fahrenheit=(celsius*1.8)+32
print('%0.if celsius is equal to %0.if degree fahrenheit '%(celsius,fahrenheit))

SWAPPING OF TWO NUMBERS
x=8
y=2
print("value of x and y before swpping",x,y)
x=x+y
y=x-y
x=x-y
print("after swapping of number x and y",x, y) 
