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@stdlib/blas-base-gdot

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Calculate the dot product of two vectors.

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/* * @license Apache-2.0 * * Copyright (c) 2020 The Stdlib Authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ // TypeScript Version: 4.1 /// <reference types="@stdlib/types"/> import { NumericArray } from '@stdlib/types/array'; /** * Interface describing `gdot`. */ interface Routine { /** * Computes the dot product of two vectors. * * @param N - number of indexed elements * @param x - first input array * @param strideX - `x` stride length * @param y - second input array * @param strideY - `y` stride length * @returns dot product * * @example * var x = [ 4.0, 2.0, -3.0, 5.0, -1.0 ]; * var y = [ 2.0, 6.0, -1.0, -4.0, 8.0 ]; * * var z = gdot( x.length, x, 1, y, 1 ); * // returns -5.0 */ ( N: number, x: NumericArray, strideX: number, y: NumericArray, strideY: number ): number; /** * Computes the dot product of two vectors using alternative indexing semantics. * * @param N - number of indexed elements * @param x - first input array * @param strideX - `x` stride length * @param offsetX - starting index for `x` * @param y - second input array * @param strideY - `y` stride length * @param offsetY - starting index for `y` * @returns dot product * * @example * var x = [ 4.0, 2.0, -3.0, 5.0, -1.0 ]; * var y = [ 2.0, 6.0, -1.0, -4.0, 8.0 ]; * * var z = gdot.ndarray( x.length, x, 1, 0, y, 1, 0 ); * // returns -5.0 */ ndarray( N: number, x: NumericArray, strideX: number, offsetX: number, y: NumericArray, strideY: number, offsetY: number ): number; } /** * Computes the dot product of two vectors. * * @param N - number of indexed elements * @param x - first input array * @param strideX - `x` stride length * @param y - second input array * @param strideY - `y` stride length * @returns dot product * * @example * var x = [ 4.0, 2.0, -3.0, 5.0, -1.0 ]; * var y = [ 2.0, 6.0, -1.0, -4.0, 8.0 ]; * * var z = gdot( x.length, x, 1, y, 1 ); * // returns -5.0 * * @example * var x = [ 4.0, 2.0, -3.0, 5.0, -1.0 ]; * var y = [ 2.0, 6.0, -1.0, -4.0, 8.0 ]; * * var z = gdot.ndarray( x.length, x, 1, 0, y, 1, 0 ); * // returns -5.0 */ declare var gdot: Routine; // EXPORTS // export = gdot;