## Saturday, May 20, 2017

### HP 12C: Complex Arithmetic (Addition, Multiplication, and Division)

HP 12C:   Complex Arithmetic (Addition, Multiplication, and Division)

Let A and B represent the two complex numbers

A = R1 + R4*i
B = R2 + R5*i

Where i = √-1

Store real components in R1 and R2, and imaginary parts R4 and R5.  Choose the arithmetic calculations:

Enter 0 for addition:  A + B
Enter 1 for multiplication:  A * B
Enter 2 or otherwise for division:  A ÷ B

Result:  C = R3 + R6*i

Program:
 STEP CODE KEY 01 44, 0 STO 0 02 43, 35 X=0 03 43, 33, 09 GTO 09 04 1 1 05 30 - 06 43, 35 X=0 07 43, 33, 18 GTO 18 08 43, 33, 35 GTO 35 09 45, 1 RCL 1 10 45, 2 RCL 2 11 40 + 12 44, 3 STO 3 13 45, 4 RCL 4 14 45, 5 RCL 5 15 40 + 16 44, 6 RCL 6 17 43, 33, 63 GTO 63 18 45, 1 RCL 1 19 45, 2 RCL 2 20 20 * 21 45, 4 RCL 4 22 45, 5 RCL 5 23 20 * 24 30 - 25 44, 3 STO 3 26 45, 1 RCL 1 27 45, 5 RCL 5 28 20 * 29 45, 2 RCL 2 30 45, 4 RCL 4 31 20 * 32 40 + 33 44, 6 STO 6 34 43, 33, 63 GTO 63 35 45, 2 RCL 2 36 36 ENTER 37 20 * 38 45, 5 RCL 5 39 36 ENTER 40 20 * 41 40 + 42 44, 0 STO 0 43 45, 1 RCL 1 44 45, 2 RCL 2 45 20 * 46 45, 4 RCL 4 47 45, 5 RCL 5 48 20 * 49 40 + 50 45, 0 RCL 0 51 10 ÷ 52 44, 3 STO 3 53 45, 4 RCL 4 54 45, 2 RCL 2 55 20 * 56 45, 1 RCL 1 57 45, 5 RCL 5 58 20 * 59 30 - 60 45, 0 RCL 0 61 10 ÷ 62 44, 6 STO 6 63 45, 3 RCL 3 64 31 R/S 65 45, 6 RCL 6 66 43, 33, 00 GTO 00

Example:
A = 4.25 + 3.16*i, B = -2.27 + 1.04*i

Option 0 (+):  1.98 + 4.20*i
Option 1 (*):  -12.93 – 2.75*i
Option 2 (÷): -1.02 – 1.86*i

Eddie

This blog is property of Edward Shore, 2017