kIntegration Calculations[OPTN]-[CALC]-[∫dx]

To perform integration calculations, first display the function analysis menu and then input the values using the syntax below.

<Math input/output mode>

K4(CALC)4(∫dx) f(x)e a f b

or

4(MATH)6(g)1(∫dx) f(x)e a f b

<Linear input/output mode>

K4(CALC)4(∫dx) f(x) , a , b , tol )

(a: lower limit, b: upper limit, tol: tolerance)

∫( f(x), a, b, tol) ⇒ ∫ab f(x)dx

Area of ∫ab f (x)dx is calculated

As shown in the illustration above, integration calculations are performed by calculating integral values from a through b for the function y = f (x) where a < x < b, and f (x) > 0. This in effect calculates the surface area of the shaded area in the illustration.

Example

To perform the integration calculation for the function shown below,

 

with a tolerance of “tol” = 1E – 4

 

5

 

∫1 (2x2 + 3x + 4) dx

• Math input/output mode K4(CALC)4(∫dx)cvx+ dv+eebffw

•Linear input/output mode Input the function f (x).

AK4(CALC)4(∫dx)cvx+dv+e,

Input the start point, end point, and the tolerance value.

b,f,bE-e)w

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