The plain-English version
Rules that allow compatible array shapes to participate in element-wise operations without manually repeating every value.
Why it matters
It can express operations such as applying one scale per feature.
Let’s make it click
An observation matrix is multiplied by a vector of column scale factors.
Vibe Bro’s heads-up
Compatible shapes can still encode the wrong intent; verify axes explicitly because a valid broadcast may silently produce an unintended result.
The docs behind it
Documentation links checked .
Editorial review · October 28, 2026
Supported: Broadcasting uses compatible shapes but cannot infer intended axis meaning; the column-factor example is valid.