Numbers in Python

Master numeric operations in Python: creation, validation, math utilities, rounding, random numbers, powers, roots, and conversions.

Creating Numbers

Python provides built-in numeric types like int and float. Python automatically detects the type when you assign a value.

1. Creating Integers and Floats

Numbers can be integers or floating-point values.

Finding Min and Max

Python provides built-in functions min() and max() to find minimum and maximum values.

1. Finding Minimum

Use min() to find the smallest number.

2. Finding Maximum

Use max() to find the largest number.

Rounding Numbers

Python provides round() for rounding numbers to integers or decimal places.

1. Round to Nearest Integer

Use round() without second argument.

2. Round to N Decimal Places

Use second parameter in round().

Random Numbers

Python provides the random module for generating random values.

1. Random Number from 0 to 1

Use random.random().

2. Random Integer from a to b

Use random.randint(a, b).

Powers and Roots

Python supports exponentiation using ** operator and pow() function.

1. Finding a^b

Use ** operator.

2. Finding Nth Root

Use fractional exponent.

Number ↔ String Conversion

Conversion is common when handling user input and output.

1. Number to String

Use str() to convert number to string.

2. String to Number

Use int() or float().

Validating Numbers

Use try/except to safely validate numeric conversion.

1. Checking Numeric String

Handle invalid values safely.