38.1 Exception Types (.NET, C#, CSharp, VB, Visual Basic, F#)
The following exception classes inherit from NMathException.
Exception |
Description |
Thrown when MKL or CUDA (NMath Premium only) returns an error condition when computing an FFT. |
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Thrown when GPU support (NMath Premium only) cannot be configured as requested. |
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Thrown when an out of range index is passed to an NMath function. |
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Thrown when an invalid argument is passed to an NMath function. |
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Thrown when a histogram operation results in invalid bin boundaries. |
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Thrown when NMath cannot load a kernel assembly. |
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Thrown when a matrix operation requiring a square matrix is presented with a non-square one. |
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Exception thrown when an operation is performed with operands whose sizes are incompatible with the operation; for example, if you try to add two vectors with different lengths, or take the inner product of matrices A and B when the number of columns of A is not equal to the number of rows of B. |
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Thrown when a method encounters a faulty text representation; for example, if you try to create a vector from a string that has an invalid format. |
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Thrown when a matrix operation requiring a non-singular matrix is presented with a singular one. |
For example, this code attempts to multiply two matrices with different dimensions, and catches a MismatchedSizeException:
Code Example – C#
DoubleComplexMatrix A = new DoubleComplexMatrix( 3, 3, new DoubleComplex(1,0) ); DoubleComplexMatrix B = new DoubleComplexMatrix( 2, 2, new DoubleComplex(1,0) ); DoubleComplexMatrix C; try { C = A * B; } catch( MismatchedSizeException e ) { Console.WriteLine( "Oops - " + e.Message ); }
Code Example – VB
Dim A As New DoubleComplexMatrix(3, 3, New DoubleComplex(1, 0)) Dim B As New DoubleComplexMatrix(2, 2, New DoubleComplex(1, 0)) Dim C As DoubleComplexMatrix Try C = A * B Catch E As MismatchedSizeException Console.WriteLine("Oops - " & E.Message) End Try
Matrices must have the same dimensions to be combined using the element-wise operators.