/**
 * @packageDocumentation
 * @module std.internal
 */
export declare namespace MathUtil {
    function factorial(k: number): number;
    function integral(formula: (x: number) => number, first: number, last: number, segment_count?: number): number;
    function sigma(formula: (k: number) => number, first: number, last: number): number;
}
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