• Home
• com.mayabot
• maya-simple-blas
• 1.1.2
• source code
• Matrixs.kt

×

Project download

Many resources are needed to download a project. Please understand that we have to compensate our server costs. Thank you in advance.
Project price only 1 $

You can buy this project and download/modify it how often you want.

com.mayabot.blas.Matrixs.kt Maven / Gradle / Ivy

package com.mayabot.blas

import com.google.common.base.Preconditions.checkArgument


/**
 * 矩阵和向量相乘，结果保存到target向量里面
 */
fun matrixMulVector(matrix: FloatMatrix, v: Vector, target: MutableVector) {
    checkArgument(matrix.rows() == target.length())
    checkArgument(matrix.cols() == v.length())

    val m_ = matrix.rows()
    for (i in 0 until m_) {
        var x = 0f
        for (j in 0 until matrix.cols()) {
            x += matrix[i, j] * v[j]
        }
        target[i] = x
    }
}