|
using System;
namespace YAMP
{
class SumFunction : StandardFunction
{
public override Value Perform(Value argument)
{
if (argument is ScalarValue)
return argument;
else if (argument is MatrixValue)
{
var m = argument as MatrixValue;
if(m.DimensionX == 1)
return GetVectorSum(m.GetColumnVector(1));
else if(m.DimensionY == 1)
return GetVectorSum(m.GetRowVector(1));
else
{
var M = new MatrixValue(1, m.DimensionX);
for(var i = 1; i <= m.DimensionX; i++)
M[1, i] = GetVectorSum(m.GetColumnVector(i));
return M;
}
}
throw new OperationNotSupportedException("sum", argument);
}
ScalarValue GetVectorSum(MatrixValue vec)
{
var sum = new ScalarValue(0.0);
for(var i = 1; i <= vec.Length; i++)
sum = sum + vec[i];
return sum;
}
}
}
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Florian lives in Munich, Germany. He started his programming career with Perl. After programming C/C++ for some years he discovered his favorite programming language C#. He did work at Siemens as a programmer until he decided to study Physics.
During his studies he worked as an IT consultant for various companies. After graduating with a PhD in theoretical particle Physics he is working as a senior technical consultant in the field of home automation and IoT.
Florian has been giving lectures in C#, HTML5 with CSS3 and JavaScript, software design, and other topics. He is regularly giving talks at user groups, conferences, and companies. He is actively contributing to open-source projects. Florian is the maintainer of AngleSharp, a completely managed browser engine.