#### Errata, Last updated 16 January 2021

**PP. 3-4,6,9:** the roles of `tilde p` and `tilde p ^ **` should be made clear. `tilde p` represents any approximation (generally calculated using floating-point arithmetic). `tilde p ^ **` exclusively represents an approximation calculated using exact arithmetic.
**P. 9 exercise 24 part b:** (1) the sum should be from 1 to 9; and (2) 0.2071647018159241499410798569 should be 0.3550449718187918680449850763.
**P. 18 exercise 27 part g:** `T_2(x)` should be `T_3(x)`.
**P. 24 end of Crumpet 8:** In the last line, "not" should be "no".
**P. 38 exercise 20:** A better demonstration of the instability of calculating `<< c_n >>` would be to calculate `c_50`.
**Section 2.1:** Reference to maximum number of iterations should be deleted. It has been removed from the pseudo-code.
**P. 47 exercise 20b:** `f` should be `g`.
**P. 48 exercise 29:** Step 4 should return `i`, not `N_0`.
**P. 48 exercise 30a:** The equation should be `x-2^x+.95=0`.
**P. 58 exercise 3b:** Should read `f(x)=ln(2e^x)/2`.
**P. 58 exercise 17:** The roles of `f` and `g` should be swapped.
**P. 59 exercise 20:** "any fixed point" should read "any nonzero fixed point".
**P. 59 exercise 22:** The assumption `g'(hat x) ne 0` should be added.
**P. 67 exercise 3:** The Octave logo should be added.
**P. 75 exercise 14:** One of the "the"s should be stricken.
**P. 249 solution 26 part f:** The inequality `64/625 le 64/1125 le 64/6561` should be `64/6561 le 64/1125 le 64/625`.
**P. 250 solution 30b:** The derivative of `g` is missing the exponential factor, `e^(-xi^2)`, in two separate places.
**P. 334 sec 2.2 answer 4c:** `root(5)((4-3x^2)/2)` should be replaced by `root(5)((4-6x^2)/3)`.
**P. 334 sec 2.2 answer 4f:** Each instance of `(x^2-5x+1)` should be replaced by `-(x^2-5x+1)`.
**P. 335 sec 2.3 answer 18:** Should read, "Yes. Aitken's delta-squared method is designed to speed up linearly convergent sequences and `<< a_n >>` is linearly convergent."
**P. 336 sec 2.4 answer 20:** Is wrong. Needs to be corrected.

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