powers 1.0.0+2

Extension methods for the num class (ints and doubles) that adds functionality for finding the square, cube, and higher order roots and powers of the number.

powers

Extension methods for the num (int and double) class that add functionality for finding the square, cube, and higher order roots and powers of the number.

Usage

import 'package:powers/powers.dart';

Importing powers will add a number of methods to the num class, which are inherited by the int and double classes.

The first set of methods adds methods to handle squares.

/// [squared] returns the number squared (to the power of 2.)
print(2.squared()); // 4

/// [sqrt] returns the square root of the number.
print(4.sqrt()); // 2

/// [isSquare] returns `true` if the square root of the number is a valid integer.
print(15.isSquare); // false
print(16.isSquare); // true

The next set is to handle cubes.

/// [cubed] returns the number cubed (to the power of 3.)
print(3.cubed()); // 9

/// [cbrt] returns the cube root of the number.
print(9.cbrt()); // 3

/// [isCube] returns `true` if the cube root of the number is a valid integer.
print(26.isCube); // false
print(27.isCube); // true

And, the final set of methods is to handle higher order roots and powers.

/// [pow] returns the number to the power of n.
print(5.pow(5)); // 3125

/// [root] returns the nth root of the number.
print(3125.root(5)); // 5

/// [isPowerOf] returns `true` if the nth root of the number is a valid integer.
print(3200.isPowerOf(5)); // false
print(3125.isPowerOf(5)); // true

The int class is extended with 3 additional methods that calculate roots and return the values as ints, throwing an error if the value isn't a valid integer.

/// [sqrtToInt] returns the square root of the integer.
print(4.sqrtToInt()); // 2

/// [cbrtToInt] returns the cube root of the integer.
print(9.cbrtToInt()); // 3

/// [rootToInt] returns the factored root of the integer.
print(100.rootToInt(2)); // 10

/// Calling any of the above methods on an integer that isn't a valid power
/// will result in an [InvalidPowerException] being thrown.
print(6.sqrtToInt()); // Throws an error.