math-interval-2/dist/index.d.ts

Create math intervals like '(-∞, 100]' and test values

export declare class MathInterval {
    /**
     * Returns an interval equivalent to:
     * (a, b) = {x | a < x < b}
     */
    static open(lower: number, upper: number): MathInterval;
    /**
     * Returns an interval equivalent to:
     * [a, b] = {x | a <= x <= b}
     */
    static closed(lower: number, upper: number): MathInterval;
    /**
     * Returns an interval equivalent to:
     * [a, b) = {x | a <= x < b}
     */
    static closedOpen(lower: number, upper: number): MathInterval;
    /**
     * Returns an interval equivalent to:
     * (a, b] = {x | a < x <= b}
     */
    static openClosed(lower: number, upper: number): MathInterval;
    /**
     * Returns an interval equivalent to:
     * (a, ∞) = {x | a < x < ∞}
     */
    static greaterThan(lower: number): MathInterval;
    /**
     * Returns an interval equivalent to:
     * [a, ∞) = {x | a < x < ∞}
     */
    static atLeast(lower: number): MathInterval;
    /**
     * Returns an interval equivalent to:
     * (-∞, a) = {x | -∞ < x < a}
     */
    static lessThan(upper: number): MathInterval;
    /**
     * Returns an interval equivalent to:
     * (-∞, a] = {x | -∞ < x <= a}
     */
    static atMost(upper: number): MathInterval;
    /**
     * Returns an interval equivalent to:
     * (-∞, ∞) = {x | -∞ < x < ∞}
     */
    static all(): MathInterval;
    /**
     * Returns an interval equivalent to:
     * for interval(a, true, b, false) -> [a, b) = {x | a <= x < b}
     */
    static interval(lower: number, lowerClosed: boolean, upper: number, upperClosed: boolean): MathInterval;
    private readonly lowerBound;
    private readonly upperBound;
    private readonly intervalString;
    private constructor();
    private validate();
    private getIntervalString();
    isLowerBoundClosed(): boolean;
    isUpperBoundClosed(): boolean;
    lowerEndpoint(): number;
    upperEndpoint(): number;
    containsAll(numbers: number[]): boolean;
    /**
     *  Behaves exactly as you might expect
     */
    contains(n: number): boolean;
    /**
     * Returns true,
     * if there is some interval enclosed by both of these intervals
     */
    isConnected(other: MathInterval): boolean;
    /**
     * Returns true,
     * if the bounds of the inner interval do not extend outside the bounds of the outer interval
     */
    encloses(other: MathInterval): boolean;
    /**
     * Returns the minimal interval that encloses both this interval and other.
     * If the intervals are both connected, this is their union.
     */
    span(other: MathInterval): MathInterval;
    /**
     * Returns the maximal interval enclosed by both this interval and other
     * if they are connect, otherwise throws error
     */
    intersection(connected: MathInterval): MathInterval;
    equals(other: MathInterval): boolean;
    /**
     * Returns string representation of the interval
     * in form of `[a, b)`
     */
    toString(): string;
}