486 PRACTICAL MATHEMATICS 



PAGE 



Moment of inertia of a circle . . . . . . .237 



cone . ... . . . . 241 



cylinder ...... 240 



parallelogram ..... 234 



rectangle ...... 229 



rectangular prism ..... 239 



sphere ....... 242 



triangle ...... 234 



an irregular area ..... 256 



Moment of resistance ........ 290 



Motion of a body in a resisting medium ..... 332 



Motion of a projectile ........ 325 



Multiple angles ......... 33 



Multiplication of complex quantities . . ; . .39 



Multiplication of two vectors ....... 443 



Napierian logarithms . . . . . . . .16 



Negative angles ......... 26 



Neutral axis 290 



Partial fractions ......... 2 



Perpendicular distance of a point to a plane . . . .73 



Point of inflexion . 119,139 



Polar co-ordinates ........ 75, 279 



Position of a point in space . . . . . . .61 



Powers of " i " . . .38 



Principal axes of inertia . . . . . . . .225 



Prismoidal rule ......... 252 



Radius of curvature . . . . . . . .135 



Radius of gyration . . . . . . . .223 



Rankine-Gordon formula for struts . . . . . .361 



Resolution of vectors . . . . . . . .427 



Resultant thrust . 223 



Rules for differentiation ........ 94 



Sag in a telegraph wire ........ 270 



Scalar product of two vectors ....... 437 



Separation of the variables . . . . . . .321 



Shearing force ......... 290 



Simple harmonic motion ......'.. 352 



Simpson's Rules ......... 248 



Sine series ......... 54, 379 



Slipping of a belt on a pulley ....... 340 



Slope of a curve ......... 81 



Slope of a line . . . . . . . . 80 



Solution of equations . . . . . . . .105 



Solution of triangles . . . . . . . .19 



Specification of a vector ....... 426, 434 



Square root of a complex quantity ...... 40 



Straight line law ......... 446 



Subtraction of vectors 428, 432 



Successive differentiation . . . . . . .99 



Table of standard differential coefficients ..... 93 

 Taylor's expansion . . . . . .103 



