## Python - Numbers and basic mathematics

TjMan 16/Sep/2019 Python
Numbers and Mathematics:

Simple python number variables are easy to deal with check below examples of Python 3.

##### Code:
```print("""Addition and substraction.""")
print(2+1)
print(1-2)
print(-2+3)
```
##### Output:
```Addition and substraction.
3
-1
1
```

#### Multiplecation and Division:

##### Code:
```print("""Multiplecation and Division.""")
print(2*3)
print(3/2)
```
##### Output:
```Multiplecation and Division.
6
1.5
```

#### To the power:

##### Code:
```print("""To the power.""")
print(2**3)
```
##### Output:
```To the power.
8
```

#### Root over:

##### Code:
```print("""Root over.""")
print(9**0.5)
```
##### Output:
```Root over.
3.0
```

#### Order of operation as per math rule:

##### Code:
```print("Order of operation as per math rule.")
print(2 + 3*3 + 5)
print((2 + 3)*(3 + 5))
```
##### Output:
```Order of operation as per math rule.
16
40
```
Variables:
```a=10
b=2
print(a+b)
```
```12
```

```a=a*a
print(a)
```
```100
```

#### Check type of variable:

##### Code:
```a=10
print ("a type is:",type(a))

b=10.0
print("b type is:",type(b))
```
##### Output:
```a type is: class 'int'
b type is: class 'float'
```