https://www.khanacademy.org/math/precalculus/x9e81a4f98389efdf:matrices/x9e81a4f98389efdf:mat-intro/v/introduction-to-the-matrix 2021-03-19T16:21:25Z Intro to matrices Take the red pill and enter the Matrix! Sal Khan video https://cdn.kastatic.org/googleusercontent/67WqLE5wtNsuHYGIDLT-59ypx6Anu0Zp0kGDNzKebdOoOu6KVF9-4SRDdvQuF6OKTwNPT1yp2-tJIc6oNnRTgPaR Intro to matrices Take the red pill and enter the Matrix! https://cdn.kastatic.org/ka-youtube-converted/0oGJTQCy4cQ.mp4/0oGJTQCy4cQ.mp4 269 Matrix https://www.khanacademy.org/math/ka-math-class-12/x6f66cbee9a2f805b:matrices-ncert-new/x6f66cbee9a2f805b:matrix/v/finding-possible-orders-and-matrices 2025-05-22T13:12:03.767544849Z Finding possible orders and matrices In this video, we learn how to find the total number of possible orders for a given matrix if we know the total number of elements. Elements organise themselves in rows and columns and we can only have positve integer values for both. We use this to figure out the approach. We also look at cases where we get odd number of orders. Finally, we solve a problem where the order is fixed and we need to find the total number of matrices possible. Ashish Gupta video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Finding possible orders and matrices In this video, we learn how to find the total number of possible orders for a given matrix if we know the total number of elements. Elements organise themselves in rows and columns and we can only have positve integer values for both. We use this to figure out the approach. We also look at cases where we get odd number of orders. Finally, we solve a problem where the order is fixed and we need to find the total number of matrices possible. https://cdn.kastatic.org/ka-youtube-converted/Yy_Wp3erC4s.mp4/Yy_Wp3erC4s.mp4 578 Matrix https://www.khanacademy.org/math/revision-term-1-ncert-math-class-12/x6a634f0b79812b7f:week-1/x6a634f0b79812b7f:matrices/v/constructing-a-matrix-from-its-elements 2025-05-22T13:12:03.767544849Z Constructing a matrix from its elements In this video, we construct matrices from the formula for the elements. We first solve problems where we have to find 2x2 matrices before moving on to 3x4 matrices. Through the second set, we develop our intuition of some properties of matrices by constructing them in different ways. we realise that operations that apply to individual elements also apply to the matrix as a whole. Ashish Gupta video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Constructing a matrix from its elements In this video, we construct matrices from the formula for the elements. We first solve problems where we have to find 2x2 matrices before moving on to 3x4 matrices. Through the second set, we develop our intuition of some properties of matrices by constructing them in different ways. we realise that operations that apply to individual elements also apply to the matrix as a whole. https://cdn.kastatic.org/ka-youtube-converted/yva08BLbjK0.mp4/yva08BLbjK0.mp4 563 Matrix https://www.khanacademy.org/math/algebra-home/alg-matrices/alg-intro-to-matrices/e/matrix_dimensions 2025-05-05T08:14:25.350149109Z Matrix dimensions Determine the dimensions of a given matrix. Tomer Gal exercise https://www.khanacademy.org/math/algebra-home/alg-matrices/alg-intro-to-matrices/e/understand-matrix-coordinates 2025-05-05T08:14:25.350149109Z Matrix elements Find specific elements (also called entries) of given matrices. Tomer Gal exercise