import * as Operation from "../../operation.js";
import * as Result from "../../utility/result.js";
import { result } from "../../utility/result.js";
import { DistError } from "../DistError.js";
import { BaseSymbolicDist } from "./BaseSymbolicDist.js";
type Args = {
    mu: number;
    sigma: number;
};
export declare class Lognormal extends BaseSymbolicDist<"Lognormal", Args> {
    readonly symbolicType = "Lognormal";
    mu: number;
    sigma: number;
    private constructor();
    static make(args: Args): result<Lognormal, string>;
    getArgs(): {
        mu: number;
        sigma: number;
    };
    toString(): string;
    simplePdf(x: number): number;
    cdf(x: number): number;
    inv(x: number): number;
    sample(): number;
    mean(): number;
    variance(): Result.result<number, DistError>;
    _isEqual(other: Lognormal): boolean;
    static fromCredibleInterval({ low, high, probability, }: {
        low: number;
        high: number;
        probability: number;
    }): result<Lognormal, string>;
    static fromMeanAndStdev({ mean, stdev, }: {
        mean: number;
        stdev: number;
    }): result<Lognormal, string>;
    static multiply(l1: Lognormal, l2: Lognormal): Lognormal;
    static divide(l1: Lognormal, l2: Lognormal): Lognormal;
    static operate(operation: Operation.AlgebraicOperation, n1: Lognormal, n2: Lognormal): Lognormal | undefined;
    static operateFloatFirst(operation: Operation.AlgebraicOperation, n1: number, n2: Lognormal): Lognormal | undefined;
    static operateFloatSecond(operation: Operation.AlgebraicOperation, n1: Lognormal, n2: number): Lognormal | undefined;
}
export {};
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