The most beautiful formulas

[Passenger]

k₀∑x_j⁰ + k₁∑x_j¹ + k₂∑x_j² +,…,+ k_n∑x_jⁿ⁺⁰ = ∑y_jx_j⁰

k₀∑x_j¹ + k₁∑x_j² + k₂∑x_j³ +,…,+ k_n∑x_jⁿ⁺¹ = ∑y_jx_j¹

k₀∑x_j² + k₁∑x_j³ + k₂∑x_j⁴ +,…,+ k_n∑x_jⁿ⁺² = ∑y_jx_j²
                           .

                                     .

                                     .
k₀∑x_jⁿ + k₁∑x_jⁿ⁺¹ + k₂∑x_jⁿ⁺² +,…,+ k_n∑x_jⁿ⁺ⁿ = ∑y_jx_jⁿ

One of the most beautiful algebra formulas is the least squares polynomial formula.

[mathematic]

What's beautiful? 

[Strange]

45 minutes ago, Passenger said:

One of the most beautiful algebra formulas is the least squares polynomial formula.

It is a very ugly font.

[Passenger]

e^πi + 1 = 0

Edited August 22, 2019 by Passenger
The font was too small

[Country Boy]

  I don't understand the purpose of this thread.  Have you ever actually taken a class in algebra?