Casio fx-9860G SD - Manual (Page 98)

20050401
u 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 , tol) of a differential.
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.
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, 1 E - 8), etc.
dx