/**
 * Formats a large number into a more readable string with suffixes.
 * @param num - The number to format.
 * @param digits - The number of decimal places to include (optional).
 * @returns A formatted number string.
 */
export declare function formatNumberWithSuffix(num: number, digits?: number): string;
/**
 * Clamps a number between a minimum and maximum value.
 * @param num - The number to clamp.
 * @param min - The minimum value.
 * @param max - The maximum value.
 * @returns The clamped number.
 */
export declare function clamp(num: number, min: number, max: number): number;
/**
 * Calculates the percentage difference between two numbers.
 * @param oldValue - The initial value.
 * @param newValue - The new value.
 * @returns The percentage difference.
 */
export declare function percentageDifference(oldValue: number, newValue: number): number;
/**
 * Converts a percentage value to a decimal.
 * @param percentage - The percentage value.
 * @returns The decimal value.
 */
export declare function percentageToDecimal(percentage: number): number;
/**
 * Converts a decimal value to a percentage.
 * @param decimal - The decimal value.
 * @returns The percentage value.
 */
export declare function decimalToPercentage(decimal: number): number;
/**
 * Finds the median of an array of numbers.
 * @param numbers - The array of numbers.
 * @returns The median value.
 */
export declare function findMedian(numbers: number[]): number;
/**
 * Finds the mode of an array of numbers.
 * @param numbers - The array of numbers.
 * @returns The mode value(s).
 */
export declare function findMode(numbers: number[]): number[];
/**
 * Calculates the factorial of a number.
 * @param n - The number.
 * @returns The factorial of the number.
 */
export declare function factorial(n: number): number;
/**
 * Rounds a number to the nearest multiple of a given value.
 * @param num - The number to round.
 * @param multiple - The multiple to round to.
 * @returns The rounded number.
 */
export declare function roundToNearestMultiple(num: number, multiple: number): number;
/**
 * Calculates the sum of an array of numbers.
 * @param numbers - The array of numbers.
 * @returns The sum of the numbers.
 */
export declare function sum(numbers: number[]): number;
/**
 * Calculates the average of an array of numbers.
 * @param numbers - The array of numbers.
 * @returns The average value.
 */
export declare function average(numbers: number[]): number;
/**
 * Rounds a number to a specified number of decimal places.
 * @param num - The number to round.
 * @param decimalPlaces - The number of decimal places.
 * @returns The rounded number.
 */
export declare function roundToDecimalPlaces(num: number, decimalPlaces: number): number;
/**
 * Checks if a number is a prime number.
 * @param num - The number to check.
 * @returns True if the number is prime, false otherwise.
 */
export declare function isPrime(num: number): boolean;
/**
 * Generates an array of numbers within a specified range.
 * @param start - The starting value.
 * @param end - The ending value.
 * @param step - The step size between values.
 * @returns An array of numbers.
 */
export declare function generateRange(start: number, end: number, step?: number): number[];
/**
 * Linearly interpolates between two values.
 * @param start - The start value.
 * @param end - The end value.
 * @param t - The interpolation factor (0.0 to 1.0).
 * @returns The interpolated value.
 */
export declare function lerp(start: number, end: number, t: number): number;