In residual sum of squares, why do we need to square?
33034
Why squared residuals instead of absolute residuals in OLS estimation?
71591
Formula for completing the square?
79677
Difference of squares - number of representations
56945
What does the math notation $\sum$ mean?
85351
Standard Deviation. Why do we take the square root of the entire equation?
140415
When does a Square Matrix have an LU Decomposition?
147562
Sum of squares diophantine equation
147795
$\sum x_n^2$ and $\sum y_n^2$ converge, what does $\sum (x_n + y_n)^2$ do?
18932
Squares in arithmetic progression
16472
Sum of First $n$ Squares Equals $\frac{n(n+1)(2n+1)}{6}$
7073
How to get to the formula for the sum of squares of first n numbers?
140433
The number of ways of writing an integer as a sum of two squares
69194
Partitioning sum of squares
58171
Two problems about Squarefree numbers
80705
Why divide by $n-2$ for residual standard errors
14481
How do I show that the sum of residuals of OLS are always zero using matrices
41356
Reason for square images in deep learning