Dot products and duality | Essence of linear algebra, chapter 7

Dot products and duality | Essence of linear algebra, chapter 7

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Math topics:
_Functions_and_mappings_##Functions and mappings##_Function_(mathematics)_##Function (mathematics)##_Norm_(mathematics)_##Norm (mathematics)##_Linear_map_##Linear map##_Elementary_mathematics_##Elementary mathematics##_Multiplication_##Multiplication##_Two-dimensional_space_##Two-dimensional space##_Unit_vector_##Unit vector##_Functional_analysis_##Functional analysis##_Associative_property_##Associative property##_Cross_product_##Cross product##_Projection_(linear_algebra)_##Projection (linear algebra)##_Algebra_##Algebra##_Multiplicative_inverse_##Multiplicative inverse##_Square_(algebra)_##Square (algebra)##_Operation_(mathematics)_##Operation (mathematics)##_Group_theory_##Group theory##_Unit_(ring_theory)_##Unit (ring theory)##_1_(number)_##1 (number)##_Number_##Number##_Mathematical_terminology_##Mathematical terminology##_Space_(mathematics)_##Space (mathematics)##_Mathematics_##Mathematics##_Projection_(mathematics)_##Projection (mathematics)##_Sign_(mathematics)_##Sign (mathematics)
Other topics:
_Linear_algebra_##Linear algebra##_Euclidean_vector_##Euclidean vector##_Linear_span_##Linear span##_Dot_product_##Dot product##_Matrix_theory_##Matrix theory##_Matrix_multiplication_##Matrix multiplication##_Matrix_(mathematics)_##Matrix (mathematics)##_Row_and_column_spaces_##Row and column spaces
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