Casio fx-9750G Differential/Quadratic Differential, Integration, Value - Manual (Page 7)

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k k k k k Applications of Differential Calculations
• Differentials can be added, subtracted, multiplied and divided with each other.
Example
• Differential results can be used in addition, subtraction, multiplication, and divi-
sion, and in functions.
Example 2
×
f '(a), log ( f '(a))
• Functions can be used in any of the terms ( f ( x ) , a ,
∆
x ) of a differential.
Example
• Note that you cannot use a Solve, differential, quadratic differential, integration,
maximum/minimum value or
Σ
calculation expression inside of a differential cal-
culation term.
• Pressing A during calculation of a differential (while the cursor is not shown
on the display) interrupts the calculation.
• Always perform trigonometric differentials using radians (Rad Mode) as the
angle unit.
d d
––– f (a) = f '(a), ––– g (a) = g'(a)
dx dx
Therefore:
f '(a) + g'(a), f '(a)
×
g'(a)
d
––– (sin x + cos x , sin0.5)
dx
Differential Calculations
3 - 3