pg. 84

[alextzik]

• Exercise 5.2 mentions using a unit step factor, but the magnitude of the step is not 1 in the solution.

• The solution of Exercise 5.7 uses the normalized direction of steepest descent, but the textbook derives the conjugate gradient using the unnormalized gradient direction.

[tawheeler]

The first bullet has already been fixed in the errata

[tawheeler]

@mykelk I see three options here:

1. do nothing - the questions specifies normalized. This is inconsistent though, so I'd rather do one of the other two.
2. Reinforce that we are doing this with the normalized gradient. Change "The gradient is" to "The normalized gradient is". I think that is all that is needed, because the rest can be solved without actually computing anything. I would just do this.
3. Change the problem and solution to use the unnormalized gradient. This only affects the first half of the solution.

[mykelk]

Let's go with 3.