Karen's Calculator is a high-precision calculator. Unlike ordinary calculators, it returns completely accurate results, even with operands containing thousands of digits. If you're patient, operands and results containing hundreds of thousands of digits are possble too!
Most calculators are only accurate when dealing with numbers containing a few digits -- usually 16 to 32. When asked to calculate using larger numbers, they either fail (displaying an error) or return results that are only approximately accurate.
Karen's Calculator can easily handle numbers and results containing manu thousands of digits with complete accuracy. It also includes an on-screen "tape" -- which can be saved to disk -- versatile memory features, and more!