danmargalit

In reference to version 224734d7be7ff0c4a8adb3a206356ea122112f33 Hi Dan Hope all is well with you and your family. This year has to be better than last year and we seem to be...

In reference to version 224734d7be7ff0c4a8adb3a206356ea122112f33 The 3x3 example at the beginning has a mistake. Right after we choose z=25 we do not distribute the negative sign before one of the...

In reference to version 224734d7be7ff0c4a8adb3a206356ea122112f33 I also emphasize in class that we already know how to completely solve every linear system. The point now is to build intuition/understanding.

In reference to version 224734d7be7ff0c4a8adb3a206356ea122112f33 I think that everything in this section is in service of three main facts, which convert algebra to geometry. 1. Ax=b is consistent iff b...

In reference to version 224734d7be7ff0c4a8adb3a206356ea122112f33 In reference to version 224734d7be7ff0c4a8adb3a206356ea122112f33 Delete the third part of the defn of REF. Can comment afterward that this follows, meaning that those variables don't...