@thi.ng/math/min-error.d.ts

Assorted common math functions & utilities

/**
 * Recursively evaluates function `fn` for `res` uniformly spaced values `t` in
 * the closed parametric interval `[start,end]` and computes corresponding
 * sample values `p`. For each `p` then calls `error` function to compute the
 * error to query target value `q` and eventually returns the `t` producing the
 * overall minimum error. At each level of recursion the search interval is
 * increasingly narrowed / centered around the best `t` of the current
 * iteration.
 *
 * The search is terminated early if the best error value is less than `eps`.
 *
 * The interval end points `start` and `end` MUST be normalized values in the
 * closed `[0,1]` interval.
 *
 * @param fn - function to evaluate
 * @param error - error function
 * @param q - target value
 * @param res - number of samples per interval
 * @param iter - max number of iterations / recursion limit
 * @param start - interval start
 * @param end - interval end
 */
export declare const minError: <T>(fn: (x: number) => T, error: (p: T, q: T) => number, q: T, res?: number, iter?: number, start?: number, end?: number, eps?: number) => number;
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