Uniqueness t heorem analytic
function , 261
Unit sample response, 380
v(x,y), 50, 102, 193, 446
Veblen-Oswald, 45
Vector field
irrota.tional, 111 , 467
solenoidal, 111, 467
Vector form of a complex number,
16
Velocity
ftuid ftow, 117, 466 , 468
potential, 468
Vibrations in Mechanical Systems,
529, 532
Wallis, John, 4
Weierstrass M-test, 251
Winding number, 329, 333
~. 11, 68, 85
zn, 31
zl/n., 33
zc, 171
Zero
function, 32 , 246, 278
number of , 328
order k, 278
pole plot, 387
polynomial, 32, 246
simple, 278INDEX 633trigonometric function, 180
i -transform, 33 7
admissible, 339
convolution, 344
initial conditions, 34 4
inverse, 338, 340
properties, 341, 344
table, 342
table of propert ies, 345