# If you were a linear algebra teacher, would you dock points for this?

#### Eclair_de_XII

Let's say you were proctoring some test that required proofs of Jordan canonical forms and rational canonical forms.

Would you dock points from a lazy student abbreviating the former as "J-canonical forms" and the latter as "$\mathbb{Q}$-canonical forms" in their proofs?

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#### Mark44

Mentor
Let's say you were proctoring some test that required proofs of Jordan canonical forms and rational canonical forms.

Would you dock points from a lazy student abbreviating the former as "J-canonical forms" and the latter as "$\mathbb{Q}$-canonical forms" in their proofs?
As someone who has taught linear algebra a number of times, no, I wouldn't take off points for those abbreviations. My focus would be more on the validity of the proofs.

#### vela

Staff Emeritus
Homework Helper
Not unless for some reason you had instructed them not to do that.

#### pasmith

Homework Helper
Best not to give examiners an excuse to dock marks.

#### MidgetDwarf

Let's say you were proctoring some test that required proofs of Jordan canonical forms and rational canonical forms.

Would you dock points from a lazy student abbreviating the former as "J-canonical forms" and the latter as "$\mathbb{Q}$-canonical forms" in their proofs?
silly. But I learned my lesson quickly in an intro linear course. If it is the actual instructor giving the exam, then I use what ever short hand notation he uses in lecture. If it is not the instructor proctoring the exam, then I am very formal with notation used and no shorthand.

"If you were a linear algebra teacher, would you dock points for this?"

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