r squared การใช้

:: : : : The atmosphere has no significant effect, since the gravitational force falls off as r squared.
The coefficient of determination ( R squared ) is equal to r _ { xy } ^ 2 when the model is linear with a single independent variable.
I see, I think I used too many zeroes and squared 93 trillion rather than million, and the diameter is pi x r not pi r squared.
"Pi r squared " and " Stop that, Gaby, " which he picked up when the Mengs told their parrot to stop talking.
I was remembering 24, 000 mi circumference, 93 million miles to sun ( = radius of orbit ), and pi r squared for the diameter of the orbit travelled in a year.