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C# System.Numerics.Complex.IsOne方法代码示例

本文整理汇总了C#中System.Numerics.Complex.IsOne方法的典型用法代码示例。如果您正苦于以下问题:C# System.Numerics.Complex.IsOne方法的具体用法?C# System.Numerics.Complex.IsOne怎么用?C# System.Numerics.Complex.IsOne使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在System.Numerics.Complex的用法示例。


在下文中一共展示了System.Numerics.Complex.IsOne方法的3个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。

示例1: ScaleArray

        /// <summary>
        /// Scales an array. Can be used to scale a vector and a matrix.
        /// </summary>
        /// <param name="alpha">The scalar.</param>
        /// <param name="x">The values to scale.</param>
        /// <param name="result">This result of the scaling.</param>
        /// <remarks>This is similar to the SCAL BLAS routine.</remarks>
        public virtual void ScaleArray(Complex alpha, Complex[] x, Complex[] result)
        {
            if (x == null)
            {
                throw new ArgumentNullException("x");
            }

            if (alpha.IsZero())
            {
                Array.Clear(result, 0, result.Length);
            }
            else if (alpha.IsOne())
            {
                x.Copy(result);
            }
            else
            {
                if (Control.ParallelizeOperation(x.Length))
                {
                    CommonParallel.For(0, x.Length, 4096, (a, b) =>
                        {
                            for (int i = a; i < b; i++)
                            {
                                result[i] = alpha*x[i];
                            }
                        });
                }
                else
                {
                    for (var index = 0; index < x.Length; index++)
                    {
                        result[index] = alpha*x[index];
                    }
                }
            }
        }
开发者ID:nakamoton,项目名称:mathnet-numerics,代码行数:43,代码来源:ManagedLinearAlgebraProvider.Complex.cs

示例2: MatrixMultiplyWithUpdate


//.........这里部分代码省略.........
                }

                m = columnsA;
                n = rowsB;
                k = rowsA;
            }
            else if ((int) transposeA > 111)
            {
                if (rowsA != rowsB)
                {
                    throw new ArgumentOutOfRangeException();
                }

                if (columnsA*columnsB != c.Length)
                {
                    throw new ArgumentOutOfRangeException();
                }

                m = columnsA;
                n = columnsB;
                k = rowsA;
            }
            else if ((int) transposeB > 111)
            {
                if (columnsA != columnsB)
                {
                    throw new ArgumentOutOfRangeException();
                }

                if (rowsA*rowsB != c.Length)
                {
                    throw new ArgumentOutOfRangeException();
                }

                m = rowsA;
                n = rowsB;
                k = columnsA;
            }
            else
            {
                if (columnsA != rowsB)
                {
                    throw new ArgumentOutOfRangeException();
                }

                if (rowsA*columnsB != c.Length)
                {
                    throw new ArgumentOutOfRangeException();
                }

                m = rowsA;
                n = columnsB;
                k = columnsA;
            }

            if (alpha.IsZero() && beta.IsZero())
            {
                Array.Clear(c, 0, c.Length);
                return;
            }

            // Check whether we will be overwriting any of our inputs and make copies if necessary.
            // TODO - we can don't have to allocate a completely new matrix when x or y point to the same memory
            // as result, we can do it on a row wise basis. We should investigate this.
            Complex[] adata;
            if (ReferenceEquals(a, c))
            {
                adata = (Complex[]) a.Clone();
            }
            else
            {
                adata = a;
            }

            Complex[] bdata;
            if (ReferenceEquals(b, c))
            {
                bdata = (Complex[]) b.Clone();
            }
            else
            {
                bdata = b;
            }

            if (beta.IsZero())
            {
                Array.Clear(c, 0, c.Length);
            }
            else if (!beta.IsOne())
            {
                Control.LinearAlgebraProvider.ScaleArray(beta, c, c);
            }

            if (alpha.IsZero())
            {
                return;
            }

            CacheObliviousMatrixMultiply(transposeA, transposeB, alpha, adata, 0, 0, bdata, 0, 0, c, 0, 0, m, n, k, m, n, k, true);
        }
开发者ID:nakamoton,项目名称:mathnet-numerics,代码行数:101,代码来源:ManagedLinearAlgebraProvider.Complex.cs

示例3: AddVectorToScaledVector

        /// <summary>
        /// Adds a scaled vector to another: <c>result = y + alpha*x</c>.
        /// </summary>
        /// <param name="y">The vector to update.</param>
        /// <param name="alpha">The value to scale <paramref name="x"/> by.</param>
        /// <param name="x">The vector to add to <paramref name="y"/>.</param>
        /// <param name="result">The result of the addition.</param>
        /// <remarks>This is similar to the AXPY BLAS routine.</remarks>
        public virtual void AddVectorToScaledVector(Complex[] y, Complex alpha, Complex[] x, Complex[] result)
        {
            if (y == null)
            {
                throw new ArgumentNullException("y");
            }

            if (x == null)
            {
                throw new ArgumentNullException("x");
            }

            if (y.Length != x.Length)
            {
                throw new ArgumentException(Resources.ArgumentVectorsSameLength);
            }

            if (y.Length != x.Length)
            {
                throw new ArgumentException(Resources.ArgumentVectorsSameLength);
            }

            if (alpha.IsZero())
            {
                y.Copy(result);
            }
            else if (alpha.IsOne())
            {
                if (Control.ParallelizeOperation(x.Length))
                {
                    CommonParallel.For(0, y.Length, 4096, (a, b) =>
                        {
                            for (int i = a; i < b; i++)
                            {
                                result[i] = y[i] + x[i];
                            }
                        });
                }
                else
                {
                    for (var index = 0; index < x.Length; index++)
                    {
                        result[index] = y[index] + x[index];
                    }
                }
            }
            else
            {
                if (Control.ParallelizeOperation(x.Length))
                {
                    CommonParallel.For(0, y.Length, 4096, (a, b) =>
                        {
                            for (int i = a; i < b; i++)
                            {
                                result[i] = y[i] + (alpha*x[i]);
                            }
                        });
                }
                else
                {
                    for (var index = 0; index < x.Length; index++)
                    {
                        result[index] = y[index] + (alpha*x[index]);
                    }
                }
            }
        }
开发者ID:nakamoton,项目名称:mathnet-numerics,代码行数:75,代码来源:ManagedLinearAlgebraProvider.Complex.cs


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