Chapter 3 Differential Calculations
Differential Calculations Chapter 3 • To perform differential calculations, first display the Option Menu, and then input the values shown in the formula below.
Differential Calculations Chapter 3 This average, which is called the central difference, is expressed as: 1 f (a + ∆x) – f (a) f (a) – f (a – ∆x) f '(a) = –– ––––––––––––– + ––––––––––––– 2 ∆x ∆x f (a + ∆x) – f (a – ∆x) = ––––––––––––––––– 2∆x u To perform a differential calculation Example To determine the derivative at point x = 3 for the function y = x3 + 4 x2 + x – 6, when the increase/decrease of x is defined as ∆ x = 1E – 5 Input the function f(x).
Differential Calculations Chapter 3 • 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.
