fx-9860GII      TI-83

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∫dx

On a Casio calculator you can enter integration calculations

MATH			▷		∫dx
	F4		F6		F1

or as

		CALC			∫dx
	OPTN		F4		F4

or via the CATALOG as

CATALOGP					INPUT
SHIFT		4		∫(		F1

You can interrupt an ongoing calculation by pressing  AC^/ON .

 

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Explanation

The syntax for using the integration command is

∫( f (x), a, b, tol )

where

f (x)	Expression
a	Start point
b	End point
tol	Tolerance

For SET UP Input/Output Math, the tolerance value is fixed at 1E−5 and cannot be changed

∫dx
≣		dx

and for SET UP Input/Output Line you get

∫dx
≣		∫(

 

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Example 1

To perform the integration calculation for the function

∫dx

≣

2

X,θ,T

x²

+

3

X,θ,T

+

4

٬

at start point x = 1 and end point x = 5

1

٬

5

٬

with a tolerance of 1E−4

1

EXP

(–)

4

)

EXE

which gives

∫(2X²+3X+4,1,5,1E-4) 404┘3

 

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Example 2

To perform the integration calculation for the function

∫dx

π٬٬

π٬٬

≣

cos

X,θ,T

٬

SHIFT

EXP

÷

2

٬

SHIFT

EXP

)

EXE

which gives

∫(cos X,π÷2,π) -1

 

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