To compare a b  {b}}} and c d  {d}}} , these are converted to a d b d  {b\cdot d}}} and b c b d  {b\cdot d}}} (where the dot signifies multiplication and is an alternative symbol to ).
a b  {b}}} আৰু c d  {d}}} ক তুলনা কৰিবলৈ সিহঁতক ক্ৰমে a d b d  {bd}}} আৰু b c b d  {bd}}} লৈ ৰূপান্তৰ কৰি লোৱা হ’ল।