Casio fx-9750G PLUS - Manual (Page 85)

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