calculator-lib-rubens 0.1.2

A python calculator library.

Calculator-LIB

A Python calculator library providing stateless arithmetic, power/root, modulo, rounding, and logarithmic/exponential operations.

Installation

pip install calculator-lib-rubens

Quick Start

from calculator_lib import Calculator

calc = Calculator()

calc.add(2, 3)  # 5
calc.subtract(10, 4)  # 6
calc.multiply(3, 4)  # 12
calc.divide(10, 2)  # 5.0

API Reference

Core Arithmetic

Method	Description
add(a, b)	Returns the sum of a and b
subtract(a, b)	Returns a minus b
multiply(a, b)	Returns the product of a and b
divide(a, b)	Returns a divided by b

Power & Roots

Method	Description
power(a, b)	Returns a raised to the power b
sqrt(a)	Returns the square root of a
nth_root(a, n)	Returns the n-th root of a

Modulo & Integer Math

Method	Description
modulo(a, b)	Returns the remainder of a / b
floor_divide(a, b)	Returns the floor division of a / b

Absolute & Rounding

Method	Description
absolute(a)	Returns the absolute value of a
round_number(a, decimals=0)	Rounds a to the given decimal places
floor(a)	Returns the largest integer <= a
ceil(a)	Returns the smallest integer >= a

Logarithmic & Exponential

Method	Description
log10(a)	Returns the base-10 logarithm of a
ln(a)	Returns the natural logarithm of a
exp(a)	Returns e raised to the power a

Usage Examples

import math
from calculator_lib import Calculator

calc = Calculator()

# Power & Roots
calc.power(2, 3)  # 8
calc.sqrt(16)  # 4.0
calc.nth_root(27, 3)  # 3.0

# Modulo & Rounding
calc.modulo(10, 3)  # 1
calc.floor_divide(7, 2)  # 3
calc.round_number(3.14159, 2)  # 3.14
calc.floor(3.7)  # 3.0
calc.ceil(3.2)  # 4.0

# Logarithmic & Exponential
calc.log10(100)  # 2.0
calc.ln(math.e)  # 1.0
calc.exp(1)  # 2.718281828459045

Error Handling

All methods validate their inputs and raise ValueError with descriptive messages for invalid operations:

calc.divide(10, 0)  # ValueError: Cannot divide by zero
calc.sqrt(-1)  # ValueError: Cannot take square root of a negative number
calc.log10(0)  # ValueError: Cannot take logarithm of a non-positive number
calc.nth_root(-4, 2)  # ValueError: Cannot take even root of a negative number
calc.modulo(10, 0)  # ValueError: Cannot modulo by zero

Requirements

• Python 3.14+

License

Modified MIT