6.7.1.9. Truncate
Truncate removes the decimal digits and leaves the integer or integer part of a real number.
Method 1: Trunc (x)
To truncate a real number x, type the word “trunc” using the letter keys. Then enter the number. If the argument is longer than one term, enclose it in parentheses.
Examples
For each number below, find the truncation value.
1) -2.1
2) 1.04
3) 2.78
4) 3 × 2 + 4.5 ÷ 2
5) (-5.08 + 2.01 – 0.75)
Calculator Solutions
Type "trunc" before each argument to truncate the number.
1) trunc(-2.1)
2) trunc(1.04)
3) trunc(2.78)
4) trunc(3 × 2 + 4.5 ÷ 2)
5) trunc(-5.08 + 2.01 – 0.75)
Method 1: Trunc (x)
To truncate a real number x, type the word “trunc” using the letter keys. Then enter the number. If the argument is longer than one term, enclose it in parentheses.
Examples
For each number below, find the truncation value.
1) -2.1
2) 1.04
3) 2.78
4) 3 × 2 + 4.5 ÷ 2
5) (-5.08 + 2.01 – 0.75)
Calculator Solutions
Type "trunc" before each argument to truncate the number.
1) trunc(-2.1)
2) trunc(1.04)
3) trunc(2.78)
4) trunc(3 × 2 + 4.5 ÷ 2)
5) trunc(-5.08 + 2.01 – 0.75)
Method 2: Setting Rounding Mode to "Truncate"
You can set the rounding mode to Truncate to avoid retyping "trunc."
1) Tap the menu button and select Settings.
You can set the rounding mode to Truncate to avoid retyping "trunc."
1) Tap the menu button and select Settings.
2) Tap Calculator.
3) Tap Number format.
4) Set the number format to Decimal.
5) Tap Rounding.
6) Tap Decimal digits.
7) Set the decimal digits to 0.
8) Tap Rounding mode.
9) Set the rounding mode to Truncate.
Go back to the calculator window using the back arrow in the top left.
Examples
For each number below, find the truncation value.
1) -2.1
2) 1.04
3) 2.78
4) 3 × 2 + 4.5 ÷ 2
5) (-5.08 + 2.01 – 0.75)
Solutions
Make sure that the rounding mode is set to truncate.
1) Type in -2.1
2) Type in 1.04
3) Type in 2.78
4) Type in (3 × 2 + 4.5 ÷ 2)
5) Type in (-5.08 + 2.01 – 0.75)
For each number below, find the truncation value.
1) -2.1
2) 1.04
3) 2.78
4) 3 × 2 + 4.5 ÷ 2
5) (-5.08 + 2.01 – 0.75)
Solutions
Make sure that the rounding mode is set to truncate.
1) Type in -2.1
2) Type in 1.04
3) Type in 2.78
4) Type in (3 × 2 + 4.5 ÷ 2)
5) Type in (-5.08 + 2.01 – 0.75)
