HP 32Sii HP 32Sii RPN Scientific Calculator - (English) Owner Manual - Page 245

Example: For the system below, compute the inverse and the system solution. Review the inverted matrix. Invert the matrix again and review the result to make sure that the original matrix is returned. 23X + 15Y + 17Z = 31 8X + 11Y - 6Z = 17 Keys: 4X + 15Y + 12Z = 14 Display: Description: W A 23 f 8 f 4 f 15 f . . . 14 f W I W M f f W A f f f f f @value Starts input routine. @value Sets first coefficient, A, equal to 23. @value Sets B equal to 8. @value Sets C equal to 4. @value . . . @)  Sets D equal to 15. Continues entry for E through L. Returns to first coefficient entered. 8 )  Calculates the inverse and displays the determinant. %/ )   Multiplies by column vector to compute X. ¸/ )  Calculates and displays Y. '/. )  Calculates and displays Z. @ )  Begins review of the inverted matrix. @. )   Displays next value. @ )   Displays next value. @ )   Displays next value. @ )  Displays next value. @. )   Displays next value. Mathematics Programs 15-19 File name 32sii-Manual-E-0424 Printed Date : 2003/4/24 Size : 17.7 x 25.2 cm