Errata, Chapter 3

p. 321, Figure

Printed:	`c.potentialAt(x, y)`
Fixed:	`c1.potentialAt(x, y)`

Reported by Shotaro Makisumi, 03-Oct-08.

p. 350, Program 3.1.11

Printed:	`// Split file by column into` `M+1` `files.`
Fixed:	`// Split file by column into` `N` `files.`

Reported by Shotaro Makisumi, 03-Oct-08.

p. 362, Program 3.1.1

Printed:	Value of charges not specified.
Fixed:	Assume value of charges is 1.0 for each `Charge`.

Reported by Donna Gabai, 03-Oct-07.

p. 368, Exercise 3.1.38

Printed:	wrong rotation formula
Fixed:	ti = (si - ci) cos(theta) - (sj - cj) sin(theta) + ci tj = (si - ci) sin(theta) + (sj - cj) cos(theta) + cj

Reported by Joshua Gabai, 23-Mar-08.

p. 379

Printed:	Program 3.2.2
Fixed:	Add trailing `}` to `main()`

Reported by Kevin Wayne, 18-Jun-07.

p. 380

Printed:	Its `private` `draw()` method scales
Fixed:	Its `draw()` method scales

Reported by Shotaro Makisumi, 04-Oct-08.

p. 381

Printed:	Program 3.2.3
Fixed:	Better style: remove call to `draw()` in `addDataPoint()`.

Reported by Kevin Wayne, 18-Jun-07.

p. 381, Program 3.2.3

Printed:	`private` `void draw()`
Fixed:	`public` `void draw()`

Reported by Shotaro Makisumi, 04-Oct-08.

p. 383

Printed:	adds the step size times the sine ... step size times the cosine
Fixed:	adds the step size times the cosine ... step size times the sine

Reported by Shiv Mohan Dutt, 29-Oct-08.

p. 385

Printed:	turn right 60 degrees (left -120 degrees)
Fixed:	turn right 120 degrees (left -120 degrees)

Reported by Shiv Mohan Dutt, 29-Oct-08.

p. 421

Printed:	`theta = atan(re / im)`
Fixed:	`theta = Math.atan2(im, re)`

Reported by Charles Karney, 18-Oct-07.

p. 421

Printed:	`b.im`
Fixed:	`b.im()`

Reported by Charles Karney, 14-Nov-07.

p. 434

Printed:	if `a` is less than `b`, then `b` must be less than `a`
Fixed:	if `a` is less than `b`, then `b` must be greater than `a`

Reported by Kareem Elnahal, 17-Nov-07.

p. 436

Printed:	`public Counter implements`
Fixed:	`public class Counter implements`

Reported by Mario Lopez, 26-Aug-08.

p. 437

Printed:	`"integrate(Gaussian.phi(), a, b)`
Fixed:	`"integrate(Gaussian.phi(), a, b, N)`

Reported by Charles Karney, 14-Nov-07.

p. 443

Printed:	(x₀-y₀)^2 + (x₀-y₀)^2 + ...
Fixed:	(x₀-y₀)^2 + (x₁-y₁)^2 + ...

Reported by Swami Iyer, 23-Nov-07.

p. 451, Exercise 3.3.12

Printed:	two-dimensional vectors
Fixed:	two-dimensional unit vectors

Reported by Charles Karney, 18-Oct-07.

p. 457

Printed:	Vector (Program 3.3.4)
Fixed:	Vector (Program 3.3.3)

Reported by Maia Ginsburg, 03-Jan-08.

p. 458

Printed:	Body (Program 3.4.5)
Fixed:	Vector (Program 3.4.1)

Reported by Maia Ginsburg, 03-Jan-08.