bravo!   
by Lis Schmitz   

Bravo is a comprehensive
calculator utility for Windows 95. It resembles a standard hand-held
calculator and contains virtually all the functions you could possibly want
in a calculator. It includes all the normal mathematic and trigonometric, as
well as a built-in calendar. You can convert any number between 120
different measurement units grouped in 12 categories, compute all the values
of a triangle (sides, angles, area, height) from any three known values, do
vectorial and complex calculations, and more. Bravo is even multilingual and
can be set to display in English, Italian, German, or Spanish.