Page 885 miscellaneous 



964. Trigonometric Functions for Circle-Sheet Construction 



964 



For use in constructing circle sheets (see section 37) a table of natural half-cosecants 

 and half-cotangents to four places is given. The values are given for each 10 minutes 

 from 1° to 20°, for each half degree from 20° to 50°, and for each degree from 50° 

 to 90°. 



Table 4L — Natural half-cosecants and half -cotangents 



