The trigonometrical results are given for every hundred-thousandth of the quadrant (10″ centesimal or 3″.24 sexagesimal).
The Babylonians adopted 60 for both these purposes, thus giving us the sexagesimal division of angles and of time.
Each degree is divided into 60 minutes, and each minute into 60 seconds, according to the sexagesimal division of the circle.
Gunter had as early as 1620 given the logarithms of sines and tangents on the sexagesimal scale, as far as seven decimals.
It relates to the operations with integers and sexagesimal fractions, including roots, and contains no applications.
After that the sexagesimal division system is abandoned, and fractions of seconds are estimated in decimals.
"pertaining to 60," 1680s, from Medieval Latin sexagesimalis, from Latin sexagesimus "the sixtieth," from sexaginta "sixty."