Store this matrix as an equivalent 3x3 matrix in column-major order into the supplied double array.
<p>
In order to specify an explicit offset into the array, use the method {@link #get3x3(double[], int)}.
@see #get3x3(double[], int)
@param arr
the array to write the matrix values into
@return the passed in array
Store this matrix as an equivalent 3x3 matrix in column-major order into the supplied double array. <p> In order to specify an explicit offset into the array, use the method {@link #get3x3(double[], int)}.
@see #get3x3(double[], int)
@param arr the array to write the matrix values into @return the passed in array