Casio fx-9750G PLUS - Manual (Page 89)

61
u u u u u To perform an integration calculation
Example To perform the integration calculation for the function shown
below, with a tolerance of “tol” = 1
E
- 4
∫
1
5
(2x 2 + 3x + 4) dx
Input the function f (x) .
A K4 (CALC)4(
∫dx
)cvx+dv+e,
Input the start point and end point.
b,f,
Input the tolerance value.
bE-e)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 “tol” in Gauss-Kronrod Rule, “ n ” in Simpson’s Rule, and closing
parenthesis with both rules can be omitted. If you omit “tol”, the calculator
automatically uses a value of 1
E
- 5. In the case of “ n ”, the calculator automati-
cally selects the most appropriate value.
• Integration calculations can take a long time to complete.
k k k k k
Application of Integration Calculation
• Integrals can be used in addition, subtraction, multiplication or division.
∫
a
b
f (x) dx +
∫
c
d
g(x) dx, etc.
• Integration results can be used in addition, subtraction, multiplication or
division, in functions.
2 ×
∫
a
b
f(x) dx, etc. log (
∫
a
b
f(x) dx), etc.
• Functions can be used in any of the terms ( f(x), a, b, n) of an integral.
∫ cos 0.5
(sin x + cos x) dx =
∫
(sin x + cos x, sin 0.5, cos 0.5, 5)
sin 0.5
• Note that you cannot use a Solve, differential, quadratic differential, integration,
maximum/minimum value or Σ calculation expression inside of an integration
calculation term.
Integration Calculations
3 - 4