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@stdlib/blas-ext-base-dapxsumkbn

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Adds a constant to each double-precision floating-point strided array element and computes the sum using an improved Kahan–Babuška algorithm.

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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 /** * Interface describing `dapxsumkbn`. */ interface Routine { /** * Adds a constant to each double-precision floating-point strided array element and computes the sum using an improved Kahan–Babuška algorithm. * * @param N - number of indexed elements * @param alpha - constant * @param x - input array * @param stride - stride length * @returns sum * * @example * var Float64Array = require( '@stdlib/array-float64' ); * * var x = new Float64Array( [ 1.0, -2.0, 2.0 ] ); * * var v = dapxsumkbn( x.length, 5.0, x, 1 ); * // returns 16.0 */ ( N: number, alpha: number, x: Float64Array, stride: number ): number; /** * Adds a constant to each double-precision floating-point strided array element and computes the sum using an improved Kahan–Babuška algorithm and alternative indexing semantics. * * @param N - number of indexed elements * @param alpha - constant * @param x - input array * @param stride - stride length * @param offset - starting index * @returns sum * * @example * var Float64Array = require( '@stdlib/array-float64' ); * * var x = new Float64Array( [ 1.0, -2.0, 2.0 ] ); * * var v = dapxsumkbn.ndarray( x.length, 5.0, x, 1, 0 ); * // returns 16.0 */ ndarray( N: number, alpha: number, x: Float64Array, stride: number, offset: number ): number; } /** * Adds a constant to each double-precision floating-point strided array element and computes the sum using an improved Kahan–Babuška algorithm. * * @param N - number of indexed elements * @param alpha - constant * @param x - input array * @param stride - stride length * @returns sum * * @example * var Float64Array = require( '@stdlib/array-float64' ); * * var x = new Float64Array( [ 1.0, -2.0, 2.0 ] ); * * var v = dapxsumkbn( x.length, 5.0, x, 1 ); * // returns 16.0 * * @example * var Float64Array = require( '@stdlib/array-float64' ); * * var x = new Float64Array( [ 1.0, -2.0, 2.0 ] ); * * var v = dapxsumkbn.ndarray( x.length, 5.0, x, 1, 0 ); * // returns 16.0 */ declare var dapxsumkbn: Routine; // EXPORTS // export = dapxsumkbn;