- Joined
- Apr 12, 2005
- Messages
- 11,339
Avoiding fractions is an important pursuit, but it is not the goal. You will have to get used to your fractions or develop methods around most of them. Sometimes, you can simply wait until later. For example, if you don't need R2 to clear up R3, do R3 first.
-2* R1 + R3
gives
0 0 -1 -2
or
0 0 1 2 <== New R3
Then
7*R3 + R2
gives
0 -2 0 -4
or
0 2 0 4
or
0 1 0 2
How do you feel about those fractions, now?
Rule #1 - Don't panic.
Rule #2 - Think!
-2* R1 + R3
gives
0 0 -1 -2
or
0 0 1 2 <== New R3
Then
7*R3 + R2
gives
0 -2 0 -4
or
0 2 0 4
or
0 1 0 2
How do you feel about those fractions, now?
Rule #1 - Don't panic.
Rule #2 - Think!