Integration Calculations - Canon F-792SGA Instructions Manual

! You can leave out the ∆x in the differential expression and the
calculator will automatically substitute a value for ∆x.
! The smaller the entered value ∆x is, the longer the calculation time will
be with more accurate results, the larger the entered value ∆x is, the
shorter the calculation time will be with comparatively less accurate
results.
! Inaccurate results and errors can be caused by the following :
• Discontinuous points in x values
• Extreme changes in x value
• Inclusion of the local maximum point and local minimum point in
x values.
• Inclusion of the inflection point in x values
• Inclusion of undifferentiable points in x values
• Differential calculation results approaching zero
! When performing differential calculations with trigonometric functions,
select radian (Rad) as the angle unit setting.
! Log b, i~Rand(, Rec( , Pol(, ∫(, d/dx(, ∑(, ∏(, Max( and Min( functions
a
cannot join in differential calculations.
! You can cancel the processing of differential calculation by pressing
the key.

Integration Calculations

Integration Calculations can be used in the COMP mode only.
To perform an integration calculation you are required to input the
following elements:
•
f(x) : Function of X. (All non-X variables are treated as
constants.)
• a, b : The integration range of the definite integral.
• n : Tolerance; for Line Mode only
The integration calculation is based on Gauss-kronrod method.
The internal integration calculations may take considerable time
to complete. For some cases, even after considerable time is
spent performing a calculation, the calculation results may be
erroneous. Particularly when significant digits are less than 1,
an ERROR might occur.
Example: Perform the integration calculation, with n = 4.
LINE MODE:
Key in operation
f(x) a b n
( 5 X ^ ( 4 ) + 3 X
53
Display
2
+ 2 X
236
0