n = \frac{I}{{Aq\upsilon _d }} = \frac{I}{{wte\upsilon _d }}
% MathType!MTEF!2!1!+- % feaafaart1ev1aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn % hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqr1ngB % PrgifHhDYfgasaacH8YjY-vipgYlh9vqqj-hEeeu0xXdbba9frFj0- % OqFfea0dXdd9vqai-hGuQ8kuc9pgc9q8qqaq-dir-f0-yqaiVgFr0x % fr-xfr-xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaamOBai % abg2da9maalaaabaGaamysaaqaaiaadgeacaWGXbGaeqyXdu3aaSba % aSqaaiaadsgaaeqaaaaakiabg2da9maalaaabaGaamysaaqaaiaadE % hacaWG0bGaamyzaiabew8a1naaBaaaleaacaWGKbaabeaaaaaaaa!46AD!
Pasting the above "text" into MathType 5.0 will enter the above equation and make it possible to edit, save, and use in applications such as MS Word.
