Texas Instruments TI-84 PLUS SILV Guidebook - Page 163
Matrices, Creating a Matrix with dim, Redimensioning a Matrix with dim, identity
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Note: dim(matrix)"Ln:Ln(1) returns the number of rows. dim(matrix)"Ln:Ln(2) returns the number of columns. Creating a Matrix with dim( Use dim( with ¿ to create a new matrixname of dimensions rows × columns with 0 as each element. {rows,columns}"dim(matrixname) Redimensioning a Matrix with dim( Use dim( with ¿ to redimension an existing matrixname to dimensions rows × columns. The elements in the old matrixname that are within the new dimensions are not changed. Additional created elements are zeros. Matrix elements that are outside the new dimensions are deleted. {rows,columns}"dim(matrixname) Fill( Fill( stores value to every element in matrixname. Fill(value,matrixname) identity( identity( returns the identity matrix of dimension rows × dimension columns. identity(dimension) Chapter 10: Matrices 156