The Digitas - freeware 32 bit binary, hex and decimal calculator.
The Digitas handles the main arithmetic and logical operations -
Floating-point Division / (for decimal only)
RQ Search and Replace 1.55 Search multiple files and directories for a text strings, whole words, "enclosed blocks" or HTML tags and attributes.
Replace, delete, insert before.., insert after.. operations
Powerfull backup manager provides safety of all replacement operations
Math Whiz Breaks Calculation Record A 38-year-old with degrees in psychology, education and computer science needed only 11.8 seconds to calculate the 13th root of a 100-digit number in his head, setting a new record, organizers said.