 | Isaac Todhunter - Plane trigonometry - 1866 - 206 pages
...practical calculations. Another method was proposed in France, towards the end of the last century, in connexion with a uniform system of decimal tables...centesimal method ; and the common method is called tho sexagesimal method, on account of the occurrence of the number sixty in forming the subdivisions... | |
 | James Henchie - Plane trigonometry - 1878 - 176 pages
...45 seconds. This division of an angle is called the sexagesimal method. 3. According to the French method, a right angle is divided into 100 equal parts called grades ; a grade into 300 equal parts called minutes ; a minute into 100 equal parts called seconds. The symbol for... | |
 | Henry Sinclair Hall, Samuel Ratcliffe Knight - Plane trigonometry - 1893 - 434 pages
...37 minutes 2'53 seconds is expressed symbolically in the form 53° 37' 2'53". 5. Centesimal Measure. A right angle is divided into 100 equal parts called grades, a grade into 100 equal parts called minutes, a minute into 100 equal parts called seconds. In this system the... | |
 | W. G. Borchardt, A. D. Perrott - Trigonometry - 1928 - 492 pages
...(seconds). This is called the English or Sexagesimal method and in practice is universally employed. 2nd method. a right angle is divided into 100 equal parts called Grades a grade „ „ „ „ „ „ ,, Minutes a minute „ „ ,, „ „ „ Seconds Thus 1 right angle = 100»... | |
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In this method a right angle is divided into 100 equal parts called grades, a grade is divided into 100 equal parts called minutes, and a minute is divided into 100 equal parts called seconds. 