HP HP-15C - Flags

90 Section 3: Calculating in Complex Mode
The program listed below is set up to compute the values of y^ from
evenly spaced values of x^. You must provide a subroutine labeled
"B" that places lm(P(z)) in the real X-register. The program uses
inputs that specify the step size h, the number of points n along the
real axis, and ZQ = x0 + iy0, the initial point on the streamline. You
must enter n, h, and z0 into the Z-, Y-, and X-registers before
running the program.
The program computes the values of zk and stores them in matrix
A in the form a^j = x^ _ i and a&2 = Vk-i f°r k = l,2,..., n.
Keystrokes
ISTO 11 MATRIX |[A]
rilfRTI
|T||USER|rSTO|[Al
[TIIUSERl
[GTOll
Display
000-
001-42,21,11
002- 33
003- 44 4
004- 33
005- 2
006-42,23,11
007- 43 35
008-44,16,11
009- 44 25
010-42,16, 1
011- 4333
012- 44 2
013u 4411
014- 4230
015- 44 3
016u 4411
Program mode.
Stores h in R4.
Dimensions matrix A to
be n X 2.
Makes all elements of A
be zero.
Stores zero in Index
register.
Recalls ZQ to X-registers.
Stores x0 in R2.
Sets an ~ xo-
Stores y0 in R^.
Setsa12 = y0.
[RepI MATRIX |[A]
017- 22 1 Branches if matrix A not
018-42,21, 0
019-45,16,11
Recalls descriptor of
matrix A.