Quantitative Business Tools I (QMB 3003 ) Learning Module 2 3 Study Sheets

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Learning Module 2 3 Study Sheets


Quantitative Business Tools I (University of Central Florida)




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Learning Module 2.2 Study Sheets




The product of a scalar 𝒌 and a matrix 𝑿
 is the matrix 𝒌𝑿
 each of whose elements is 𝒌 times the
corresponding element of 𝑿



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Learning Module 2.2 Study Sheets




The product of a scalar 𝒌 and a matrix 𝑿
 is the matrix 𝒌𝑿
𝟏 −𝟔 𝟓 −𝟑𝟎
A= 𝟓 𝟏 5 𝑨 = 𝟐𝟓 𝟓
𝟗 𝟒 𝟒𝟓 𝟐𝟎
Multiply matrix 𝑨 by the scalar “ 5”




 Let 𝑨 be an 𝒎 x 𝒏 matrix
 Let 𝑩 be an 𝒏 x 𝒌 matrix

 The product matrix 𝑨𝑩 is an 𝒎 x 𝒌 matrix

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