➕ litecalc

The litecalc library is a lightweight and user-friendly mathematical expressions evaluator, tailored for simple mathematical operations.

📦 Installation

To install litecalc, use npm:

npm install litecalc

ℹ Usage

Litecalc is straightforward to use. After installation, import it and start evaluating expressions.

import { litecalc } from 'litecalc';

// Addition and Subtraction:
litecalc('1 + 1'); // Output: 2
litecalc('3 - 1'); // Output: 2

// Multiplication and Division:
litecalc('2 * 5'); // Output: 10
litecalc('100 / 10'); // Output: 10

// Exponentiation:
litecalc('pow(10, 2)'); // Output: 100

// Constants:
litecalc('pi * 2'); // Output: 6.28...

📐 Functions

Litecalc supports the following mathematical functions:

• pow(base, exponent): Raises a base to the power of an exponent.
• sqrt(value): Calculates the square root of a given value.
• hypot(...values): Computes the square root of the sum of the squares of its arguments.
• sin(angle): Returns the sine of an angle in radians.
• cos(angle): Returns the cosine of an angle in radians.
• tan(angle): Returns the tangent of an angle in radians.

🅱 Constants

Litecalc includes the following mathematical constants:

• pi: The mathematical constant representing the ratio of a circle's circumference to its diameter.
• e: The mathematical constant representing the base of natural logarithms.
• tau: The double of the mathematical constant pi, representing one full revolution in radians.

💻 Instructions

Litecalc includes the following interpreter instructions:

• @set: Use for define constants.
• @add: Use for add a value to one constant value.
• @sub: Use for subtract a value to one constant value.
• @remove: Use for delete a constant.

Examples

import { litecalc } from 'litecalc';

litecalc(`
  @set(a, 10)
  @set(b, 15)
  @set(sum, a + b)

  @set(a, 15)
  @set(b, 30)
  @add(sum, a + b)

  sum
`); // 70