Type "=" to begin entering a function into the cell, type "1/" to enter the inverse of a value and type "COS (A2)". Drag the fill handle down to cell D20 to display the secant of each angle on the ...

Books Received Published: 06 June 1931 Standard Four-Figure Mathematical Tables: including many New Tables, Trigonometrical Functions for Radians, Inverse Trigonometrical and Hyperbolic Functions ...