Casio SERIES FX-9860G - Manual (Page 101)

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u Applications of Differential Calculations
• Differentials can be added, subtracted, multiplied or divided with each other.
Therefore:
f ' ( a ) + g ' ( a ), f ' ( a ) × g ' ( a ), etc.
• 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 , tol) of a differential.
d d
––– f (a) = f '(a), ––– g (a) = g'(a)
dx dx
d d
––– f (a) = f '(a), ––– g (a) = g'(a)
dx dx
d
––– (sin x + cos x , sin0.5, 1 E - 8), etc.
dx
d
––– (sin x + cos x , sin0.5, 1 E - 8), etc.
dx
2-5-4
Numerical Calculations
# You cannot use a differential, quadratic
differential, integration, Σ, maximum/minimum
value, Solve, RndFix or log ab 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 trigonometric differentials.