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Matrix addition and subtraction | Matrices | Precalculus | Khan Academy

video
  • Content location → Matrices
    EvidenceCandidate from reviewed zh material v1: 矩阵加法按对应位置定义。两个矩阵必须具有相同的行数和列数；结果保留这个形状，每个元素等于两个输入在对应位置上的元素之和。
  • Content location → Matrices
    EvidenceCandidate from reviewed en material v1: The instructor writes capital letters A and B above the two matrices. These labels express the comparison as A+B=B+A.

Matrices

concept
  • Explanation → Matrices
    EvidenceCandidate from reviewed zh material v1: 矩阵加法按对应位置定义。两个矩阵必须具有相同的行数和列数；结果保留这个形状，每个元素等于两个输入在对应位置上的元素之和。
  • Explanation → Matrices
    EvidenceCandidate from reviewed en material v1: The instructor writes capital letters A and B above the two matrices. These labels express the comparison as A+B=B+A.

Matrices

segment
  • Content location → Matrix addition and subtraction | Matrices | Precalculus | Khan Academy
    EvidenceCandidate from reviewed zh material v1: 矩阵加法按对应位置定义。两个矩阵必须具有相同的行数和列数；结果保留这个形状，每个元素等于两个输入在对应位置上的元素之和。
  • Explanation → Matrices
    EvidenceCandidate from reviewed zh material v1: 矩阵加法按对应位置定义。两个矩阵必须具有相同的行数和列数；结果保留这个形状，每个元素等于两个输入在对应位置上的元素之和。

Matrices

segment
  • Content location → Matrix addition and subtraction | Matrices | Precalculus | Khan Academy
    EvidenceCandidate from reviewed en material v1: The instructor writes capital letters A and B above the two matrices. These labels express the comparison as A+B=B+A.
  • Explanation → Matrices
    EvidenceCandidate from reviewed en material v1: The instructor writes capital letters A and B above the two matrices. These labels express the comparison as A+B=B+A.