Usmania Calculator - Version 1.0 Usmania Calculator provides calculation in linear style, lengthy input entry just like it is written on paper. It enables you to write in normal, superscript and subscript, as you write on paper. This way it is much closer to daily life calculation style and hence easier. Typing support helps you write input in addition to by mouse click! Calculation with numbers upto 36 bases are possible by using Usmania Calculator. Answer mode may be selected standard or scientific; and answer upto 13 decimal places may be achieved when using decimal number system. Another feature is the large collection of built-in physical constants and atomic weights: just select the required from the list and make it part of your calculation. In addition to all above, user may select from various themes already provided.