INDEX 



Case when JX = .419 



Centre of curvature . . .136 



Centre of pressure ...... 



Centroids of arcs of curves 



Centroids of irregular areas ..... . 254 



Common logarithms . . . .16 



Complex quantities .... 



Compound angles ..... 



Compound interest law . 



Cosine series ..... 54, 382 



Curvature .... 



Curves of negative slope . 



Curves of positive slope . .115 



Damped vibrations. 



Definite integral 



Deflection of beams .... 



De Moivre's Theorem ... .42 



Derived figures ..... 



Determination of constants . . . 447, 451 



Development of functions 



Differential equations of the first order 



second order . 



Differentiation of a fraction 



,, product 



,, sum . . 



484 



