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Math

  • Abs: Returns the absolute value of the given number. Works for both integers and floating-point numbers. If the input is negative, it returns its positive equivalent; otherwise, it returns the number as is.

  • Sign: Determines the sign of a signed number. Returns 1 if the number is positive, -1 if negative, and 0 if the number is zero.

  • Min: Returns the smaller of two numbers. Works for all number types including integers and floating-point numbers.

  • Max: Returns the larger of two numbers. Works for all number types including integers and floating-point numbers.

  • Clamp: Restricts a given value to be within a specified range. If the value is below the minimum, it returns the minimum; if above the maximum, it returns the maximum.

  • IntPow: Calculates base raised to the power of exp. Supports both positive and negative exponents. Returns float64 for fractional results.

  • IsEven: Checks if the given integer is even. Returns true for even numbers and false otherwise.

  • IsOdd: Checks if the given integer is odd. Returns true for odd numbers and false otherwise.

  • Swap: Swaps the values of two variables in place. It uses pointers to modify the original variables.

  • Factorial: Computes the factorial of a non-negative integer. Factorial of n is defined as the product of all integers from 1 to n. For 0 and 1, the result is 1. Factorial returns an error on invalid input.

  • GCD: Finds the greatest common divisor (GCD) of two integers using the Euclidean algorithm. If one of the inputs is 0, the other input is returned.

  • LCM: Finds the least common multiple (LCM) of two integers.

  • Sqrt: Finds the square root of the given number. Works for both integers and floating-point numbers. If the input is negative, it returns an error along with the original negative number.

  • IsPrime: Checks if a number is prime or not. Only works for non-negative integers.

  • PrimeList: Returns a slice of prime numbers up to n.

  • GetDivisors: Returns the divisors of a positive integer as an unordered slice. Returns an empty slice for negative inputs.

  • RoundDecimalPlaces: Rounds a float64 to the specified number of decimal places using math.Round (half away from zero). Negative values for places are clamped to 0 (i.e., rounds to a whole number).

Examples:

For examples of each function, please checkout EXAMPLES.md