zzCalculator is a straightforward portable desktop calculator.

You can quickly perform calculations from its smooth UI. Any calculations made are also displayed in long form at the top left of the interface. As with many of this author's screensaver apps, this calculator will undoubtedly be upgraded often with new features, etc. At this time, it is not sizable so one size fits all.

zzCalculator includes all the standard functions expected with a calculator but all in a nice and compact portable form.