2-5-9

Numerical Calculations

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.

Positive

part (S)

Negative part (S)

ab f(x)dx = ac f(x)dx + (–cbf(x)dx)

Positive part (S)

Negative part (S)

(2)When minute fl uctuations in integration divisions produce large fl uctuations in integration values, calculate the integration divisions separately (divide the large fl uctuation areas into smaller divisions), and then add the results together.

ab f(x)dx = ax1 f(x)dx + xx1 2 f(x)dx +.....+ xb4 f(x)dx

 

 

# Pressing Aduring calculation of an integral

# An error (Time Out) occurs whenever no

 

 

 

 

(while the cursor is not shown on the display)

solution that satisfi es the tolerance value can

 

 

interrupts the calculation.

be obtained.

 

 

# Always use radians (Rad mode) as the

 

 

 

angle unit when performing trigonometric

 

 

 

integrations.

 

 

 

 

 

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