HP -15C Owner's Handbook Manual page 283

X ___________________________________________
X exchange (X), 42
X exchange Y (®), 34
X-register, 32, 35, 37, 42, 60, 209-210
imaginary, 210, 211
in matrix functions, 141, 156, 175-176
with f, 202
with _, 181, 183, 102, 226
Y ___________________________________________
y-intercept, finding, 54
Y-register, 32, 37
in matrix functions, 141,156, 175-176
with f, 202
_, 181, 183, 192, 226
Z ___________________________________________
Z-register, 32
in matrix functions, 174-176
with f, 202
with _,181, 183, 192, 226
Subject Index 283