Handy Freeware Scientific Calculator with many features
Editor: ESBCalc is a Freeware Scientific Calculator for Windows with Infix Notation, Brackets, Scientific Functions (Trigonometric, Hyperbolic, Logarithmic - including Base 10, Base 2 & Natural - plus more), Memory, Paper Trail, Result History List and more. v5 Includes support for Prefix functions so to evaluate log (10) you can enter log 10 rather than 10 log (which is the Default behaviour)

If you would like a Scientific Calculator that also has:

*Scientific Notation
*Expression Editing
*Random Numbers
*More Functions
*More Constants
*User-Defined Constants
*Descriptive Statistics
*Conversion Between Hexadecimal and Decimal
*Conversion between Fractions and Decimals
*Lakh Formatting of Numbers
*Adjustable Paper Trail Height
*Printing of Paper Trail
*Add Notes, Date/Time Stamps and/or Author info to Paper Trail
*Optional Stay On Top
*More customisations
*Integrated Help
*PDF Documentation suitable for printing
*More Frequent Updating you can free download ESBCalc - Freeware Calculator 7.2.0 now.