lesson 2 of 4 · broadcasting and vectorizationlesson 2 of 4 · broadcasting and vectorizationlesson 2 of 4 · broadcasting and vectorizationlesson 2 of 4 · broadcasting and vectorizationlesson 2 of 4 · broadcasting and vectorizationlesson 2 of 4 · broadcasting and vectorizationlesson 2 of 4 · broadcasting and vectorizationlesson 2 of 4 · broadcasting and vectorizationlesson 2 of 4 · broadcasting and vectorizationlesson 2 of 4 · broadcasting and vectorizationlesson 2 of 4 · broadcasting and vectorization
Complete the broadcasting compatibility rule: align from the right; dims are compatible when equal or when one is 1.