HP 15c - Manual (Page 8)

8 Contents
I and e .......................................................... 116
Indirect Display Control ........................................... 116
Part III: HP-15C Advanced Functions ....................
119
Section 11: Calculating With Complex Numbers .......... 120
The Complex Stack and Complex Mode ............................ 120
Creating the Complex Stack .......................................... 120
Deactivating Complex Mode ......................................... 121
Complex Numbers and the Stack ...................................... 121
Entering Complex Numbers ........................................... 121
Stack Lift in Complex Mode ........................................... 124
Manipulating the Real and Imaginary Stacks .................. 124
Changing Signs .......................................................... 124
Clearing a Complex Number ....................................... 125
Entering a Real Number ............................................... 128
Entering a Pure Imaginary Number ............................... 129
Storing and Recalling Complex Numbers ....................... 130
Operations With Complex Numbers ................................ 130
One-Number Functions ................................................ 131
Two-Number Functions ................................................. 131
Stack Manipulation Functions ....................................... 131
Conditional Tests ......................................................... 132
Complex Results from Real Numbers .............................. 133
Polar and Rectangular Coordinate Conversions ................. 133
Problems ....................................................................... 135
For Further Information ................................................... 137
Section 12: Calculating With Matrices ........................ 138
Matrix Dimensions ......................................................... 140
Dimensioning a Matrix ................................................. 141
Displaying Matrix Dimensions ....................................... 142
Changing Matrix Dimensions ........................................ 142
Storing and Recalling Matrix Elements .............................. 143
Storing and Recalling All Elements in Order ................... 143
Checking and Changing Matrix Elements Individually ..... 145
Storing a Number in All Elements of a Matrix ................. 147
Matrix Operations ......................................................... 147
Matrix Descriptors ....................................................... 147
The Result Matrix ......................................................... 148