@thi.ng/transducers/curve.d.ts

Collection of ~170 lightweight, composable transducers, reducers, generators, iterators for functional data transformations

/**
 * Iterator producing an exponential curve (with adjustable curvature) between
 * `start` and `end` values over `num` steps. This is the exponential equivalent
 * of {@link line}.
 *
 * @remarks
 * Since `start` is the first value emitted, the `end` value is only reached in
 * the `num+1`th step.
 *
 * The curvature can be controlled via the logarithmic `rate` param. Recommended
 * range `[0.0001,10000]` (curved -> linear). Default: 0.1
 *
 * Similar functionality (w/ more options) is availble here:
 * [`curve`](https://docs.thi.ng/umbrella/dsp/functions/curve.html).
 *
 * @example
 * ```ts tangle:../export/curve.ts
 * import { curve } from "@thi.ng/transducers";
 *
 * console.log(
 *   [...curve(50, 100, 10)]
 * );
 * // [
 * //   50.000,
 * //   73.193,
 * //   85.649,
 * //   92.339,
 * //   95.932,
 * //   97.861,
 * //   98.897,
 * //   99.454,
 * //   99.753,
 * //   99.913,
 * //   100.000
 * // ]
 * ```
 *
 * @param start -
 * @param end -
 * @param steps -
 * @param rate -
 */
export declare function curve(start: number, end: number, steps?: number, rate?: number): IterableIterator<number>;
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