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Entering and Evaluating Equations 6–17
File name 32sii-Manual-E-0424
Printed Date : 2003/4/24 Size : 17.7 x 25.2 cm
Equation Function
The following table lists the functions that are valid in equations. Appendix F,
"Operation Index," also gives this information.
LN LOG EXP ALOG SQ SQRT
INV IP FP RND ABS x!
SIN COS TAN ASIN ACOS ATAN
SINH COSH TANH ASINH ACOSH ATANH
DEG
RAD
HR
HMS %CHG XROOT
Cn,r Pn,r
KG
LB
°C
°F
CM
IN
L
GAL RANDOM
π
+ –
×
÷
^
sx sy
σ
x
σ
y
x
y
x
w
x
ˆ
y
ˆ
r m b
n
Σ
x
Σ
y
Σ
x
2
Σ
x
2
y
2
Σ
xy
For convenience, prefix–type functions, which require one or two arguments,
display a left parenthesis when you enter them.
The prefix functions that require two arguments are %CHG, XROOT, Cn,r and
Pn,r. Separate the two arguments with a space.
In an equation, the XROOT function takes its arguments in the opposite order
from RPN usage. For example, –8
3
.
to is equivalent to
%!1.2
.
All other two–argument functions take their arguments in the Y, X order used
for RPN. For example, 28
4 {
Q8T
} is equivalent to
Q8T1
2
.
For two–argument functions, be careful if the second argument is negative.
The second argument must not start with "subtraction" (
). For a number,
use
_
. For a variable, use parentheses and
. These are valid equations: