vibrav.util.math module¶

vibrav.util.math.get_tril(arr, k=0)[source]¶

Get the lower triangular indeces of the input matrix

Note

This has a constraint for square matrices.

Parameters:

arr (numpy.array) – Array to parse the lower triangular elements
k (int) – k parameter that goes into the np.tril_indices_from function. Refer to numpy documentation for more information.

Returns:

triu_arr (numpy.array) – 1D array with the lower triangular elements

vibrav.util.math.get_triu(arr, k=0)[source]¶

Get the upper triangular indeces of the input matrix

Note

This has a constraint for square matrices.

Parameters:

arr (numpy.array) – Array to parse the upper triangular elements
k (int) – k parameter that goes into the np.triu_indices_from function. Refer to numpy documentation for more information.

Returns:

triu_arr (numpy.array) – 1D array with the upper triangular elements

vibrav.util.math.isantihermitian(data)[source]¶

Check if the input array is symmetric.

Note

This function does not determine if there are any non-numeric values. It assumes that you are feeding an array of floats, ints, etc.

vibrav.util.math.isantisymmetric(data)[source]¶

Check if the input array is symmetric.

Note

This function does not determine if there are any non-numeric values. It assumes that you are feeding an array of floats, ints, etc.

vibrav.util.math.ishermitian(data)[source]¶

Check if the input array is hermitian.

Note

This function does not determine if there are any non-numeric values. It assumes that you are feeding an array of floats, ints, etc.

vibrav.util.math.issymmetric(data)[source]¶

Check if the input array is symmetric.

Note

This function does not determine if there are any non-numeric values. It assumes that you are feeding an array of floats, ints, etc.