Casio CFX-9970G Manuale - Pagina 10

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Integration Calculations

• Pressing A during calculation of an integral (while the cursor is not shown

• Always use radians (Rad Mode) as the angle unit when performing trigono-

• Factors such as the type of function being used, positive and negative values

Note the following points to ensure correct integration values.

(1) When cyclical functions for integration values become positive or negative for

different divisions, perform the calculation for single cycles, or divide between

negative and positive, and then add the results together.

(2) When minute fluctuations in integration divisions produce large fluctuations in

integration values, calculate the integration divisions separately (divide the

large fluctuation areas into smaller divisions), and then add the results

together.

on the display) interrupts the calculation.

metric integrations.

within divisions, and the division where integration is being performed can

cause significant error in integration values and erroneous calculation results.

f(x)dx =

Positive

part (S)

Negative part (S)

f(x)dx =

f(x)dx + (–

Positive part ( S )

f (x)dx +

f (x)dx +.....+

f (x)dx)

Negative part ( S )

f (x)dx