Casio ALGEBRA FX 2.0, User Manual

Page: 82 / 426

19990401
Example To determine the derivative at point x = 3 for the function
y
=
x
3 + 4
x
2 +
x
– 6, with a tolerance of “ tol ” = 1
E
– 5
Input the function
f ( x )
.
A K 4
(CALC)
b
(
d/dx
)
v M d+e vx + v -g,
Input point
x
=
a
for which you want to determine the derivative.
d,
Input the tolerance value.
b E- f)
w
# In the function
f ( x )
, only X can be used as a
variable in expressions. Other variables (A
through Z,
r
,
"
) are treated as constants, and
the value currently assigned to that variable is
applied during the calculation.
# Input of the tolerance (
tol
) value and the
closing parenthesis can be omitted. If you omit
tolerance (
tol
) value, the calculator automati-
cally uses a value for
tol
as 1
E
-10.
# Specify tolerance (
tol
) value of 1
E
-14 or less.
An error (Iteration ERROR) occurs whenever
no solution that satisfies the tolerance value
can be obtained.
# Discontinuous points or sections with drastic
fluctuation can adversely affect precision or
even cause an error.
2-5-3
Numerical Calculations