This test uses JavaScript to generate your test and mark it. You therefore need to enable Scripting using the Preferences... item in one of the Menu items for this Browser's window. Once enabled, just Reload (Refresh) this page.

Matrices: Multiplication
(
0 –6
–15
)
 ×
(
–53
45
)
 =
(
)

tickcross



Worked Solution:

Position row R, column C in the product, is calculated by taking row R in the first matrix and column C in the second matrix; multiply a row element and its corresponding column element and add the 2 resulting products:
(
0 –6
–15
)
 ×
(
–53
45
)
 =
(
0×(–5) + (–6)×40×3 + (–6)×5
(–1)×(–5) + 5×4(–1)×3 + 5×5
)
 =
(
–24 –30
2522
)

© MEI Produced by Dr Ron Knott, 13 December 2006
tom . button [AT] mei . org . uk 		Test reference: MatrixMult.html?ref=8285