Importance:
Medium
Google discusses the Google Calculator feature.
GoogleGuy Says: [
Link to quote]
There are quite a few fun things hidden in the calculator.
Like Roman numerals:
VII * X
Plenty of units:
ounces in a cup
Nice parsing of English expressions:
fifteenth root of 32768, or seventy four times 28
And some fun stuff that mathematics buffs will love:
planck's constant * 5, or 12!, or speed of light in centimeters/second, or seconds in a day * 7, ...
Anyway, something easy to use when you need to know what the sqrt(-1) is. :)