nd4j-backends/nd4j-api-parent/nd4j-api/src/main/java/org/nd4j/linalg/api/blas/impl/BaseLevel3.java
@Override
    public void herk(char Order, char Uplo, char Trans, IComplexNumber alpha, IComplexNDArray A, IComplexNumber beta,
                    IComplexNDArray C) {
        // FIXME: int cast

        if (A.data().dataType() == DataBuffer.Type.DOUBLE)
            zherk(Order, Uplo, Trans, (int) A.rows(), (int) A.columns(), alpha.asDouble(), A, (int) A.size(0), beta.asDouble(), C, (int) C.size(0));
        else
            cherk(Order, Uplo, Trans, (int) A.rows(), (int) A.columns(), alpha.asFloat(), A, (int) A.size(0), beta.asFloat(), C, (int) C.size(0));

    }
@Override
    public void herk(char Order, char Uplo, char Trans, IComplexNumber alpha, IComplexNDArray A, IComplexNumber beta,
                    IComplexNDArray C) {
        // FIXME: int cast

        if (A.data().dataType() == DataBuffer.Type.DOUBLE)
            zherk(Order, Uplo, Trans, (int) A.rows(), (int) A.columns(), alpha.asDouble(), A, (int) A.size(0), beta.asDouble(), C, (int) C.size(0));
        else
            cherk(Order, Uplo, Trans, (int) A.rows(), (int) A.columns(), alpha.asFloat(), A, (int) A.size(0), beta.asFloat(), C, (int) C.size(0));

    }
herk performs a rank-n update of a Hermitian matrix, that is, one of the following operations:
c := alpha*a*conjug(a') + beta*c  for trans = 'N'or'n'
c := alpha*conjug(a')*a + beta*c  for trans = 'C'or'c',
where c is an n-by-n Hermitian matrix;
a is an n-by-k matrix, if trans = 'N'or'n',
a is a k-by-n matrix, if trans = 'C'or'c'.
@param Order
@param Uplo
@param Trans
@param alpha
@param A
@param beta
@param C