ix742@sdcc6.UUCP (James Hayes) (03/01/86)
Seeing that finals are almost here at UCSD, I decided I should start
going over the homework solutions I've neglected to read. I came
upon:
Page 143: #3) Determine if the following are nonsingular:
a) etc b) etc ....
The solutions read:
Page 143: #3) Bathroom problems. Use chapter 1 stuff.
-------------------------------------------------------------
Page 143: #4) Determine the inverse of this matrix:
+- -+
| 1 -1 1 |
| 0 1 2 |
| 1 0 2 |
+- -+
The solutions read:
Page 143: #4) Use method in previous chapters. ie:
+- -+ +- -+
| 1 -1 1 | 1 0 0 | | 1 0 0 | |
| 0 1 2 | 0 1 0 | ===> | 0 1 0 | blah | etc...
| 1 0 2 | 0 0 1 | | 0 0 1 | |
+- -+ +- -+
-------------------------------------------------------------
One does not expect to see this at 3 A.M.