Kquadratic differential applications – Casio fx-9750G PLUS User Manual
Page 87
59
Input 3 as point
a
, which is the differential coefficient point.
d,
Input 6 as
n
, which is final boundary.
g)
w
• In the function f(x), only X can be used as a variable in expressions. Other
variables (A through Z, r,
θ) are treated as constants, and the value currently
assigned to that variable is applied during the calculation.
• Input of the final boundary value
n
and the closing parenthesis can be omitted.
• Discontinuous points or sections with drastic fluctuation can adversely affect
precision or even cause an error.
k
k
k
k
k
Quadratic Differential Applications
• Arithmetic operations can be performed using two quadratic differentials.
Therefore:
f ''
(a) + g''(a), f ''(a)
× g''(a), etc.
• The result of a quadratic differential calculation can be used in a subsequent
arithmetic or function calculation.
2
× f ''(a), log ( f ''(a) ), etc.
• Functions can be used within the terms (
f
(x)
, a, n
) of a quadratic differential
expression.
• Note that you cannot use a Solve, differential, quadratic differential, integration,
maximum/minimum value or
Σ calculation expression inside of a quadratic
differential calculation term.
• Use only integers within the range of 1 to 15 for the value of final boundary
n
.
Use of a value outside this range produces an error.
• You can interrupt an ongoing quadratic differential calculation by pressing the
A
key.
• Always use radians (Rad Mode) as the angle unit when performing trigono-
metric quadratic differentials.
Quadratic Differential Calculations
3 - 3
d
2
––– (sin
x
+
cos
x
,
sin 0.5), etc.
dx
2
d
2
d
2
––– f (a) = f ''(a), ––– g (a) = g''(a)
dx
2
dx
2