TRUNC function

PRO BASIC

The TRUNC function in Jspreadsheet Formulas Pro is a tool that allows you to shorten a number to a specific number of decimal places. It does this by eliminating the fractional part of the number. For example, if you have the number 3.14159 and use the TRUNC function to specify one decimal place, the result will be 3.1. It is a handy tool for managing the precision of numbers in your calculations.

Documentation

Truncates a number to a specified number of decimal places by removing the fractional part of the number.

Syntax

TRUNC(number, [num_digits])

Parameter	Description
`number`	The number you want to truncate.
`[num_digits]`	Optional. The number of digits to which you want to round. If omitted, the function returns the integer portion of the number.

Behavior

The TRUNC function in spreadsheets removes all fractional parts of a number. It does so without rounding. Here's how it behaves with different types of inputs:

Numbers: TRUNC works best with numeric inputs. It simply removes the decimal part of the number, without rounding it.
Empty cells: If an empty cell is given as input, TRUNC will return a #NUM! error, indicating that the input is not a number.
Text: If a text string is passed as an argument, TRUNC will return a #VALUE! error, as it expects a numeric input.
Booleans: TRUNC will treat boolean values as numbers, where TRUE is 1 and FALSE is 0. Thus, TRUNC applied to a boolean will always return 1 or 0.
Errors: If the input cell has an error, TRUNC will propagate that error.

Common Errors

Error	Description
#NUM!	This error occurs if the number argument is invalid or not interpretable as a numeric value.
#VALUE!	This error occurs when the input to `TRUNC` is a text string. It's because `TRUNC` expects a numeric input.

Best practices

Use TRUNC when you want to remove the decimal part of a number without rounding.

Be aware of the data type of your input. TRUNC works best with numeric inputs and will return errors with non-numeric inputs.

If you want to truncate to a certain number of decimal places, you can provide a second argument to the TRUNC function.

Remember that TRUNC treats boolean values as numbers, so applying TRUNC to a boolean will always return 1 or 0.

Usage

A few examples using the TRUNC function.

TRUNC(10.9876)         returns 10
TRUNC(10.9876, 2)      returns 10.98
TRUNC(-10.9876, 2)     returns -10.98
TRUNC(123.456, 0)      returns 123
TRUNC(TRUE)            returns 1
TRUNC(FALSE)           returns 0

Interactive Spreadsheet Demo

<html>
<script src="https://jspreadsheet.com/v11/jspreadsheet.js"></script>
<script src="https://jsuites.net/v5/jsuites.js"></script>
<link rel="stylesheet" href="https://jsuites.net/v5/jsuites.css" type="text/css" />
<link rel="stylesheet" href="https://jspreadsheet.com/v11/jspreadsheet.css" type="text/css" />

<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Material+Icons" />
<script src="https://cdn.jsdelivr.net/npm/@jspreadsheet/formula-pro/dist/index.min.js"></script>

<div id="spreadsheet"></div>

<script>
// Set your JSS license key (The following key only works for one day)
jspreadsheet.setLicense('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');

// Set the extensions
jspreadsheet.setExtensions({ formula });

// Create a new spreadsheet
jspreadsheet(document.getElementById('spreadsheet'), {
  worksheets: [{
    data: [
    [
        "Original Number",
        "Decimal Places",
        "Truncated Result"
    ],
    [
        3.14159,
        2,
        "=TRUNC(A2,B2)"
    ],
    [
        15.789456,
        0,
        "=TRUNC(A3,B3)"
    ],
    [
        -7.654321,
        3,
        "=TRUNC(A4,B4)"
    ],
    [
        100.999,
        1,
        "=TRUNC(A5,B5)"
    ]
]
  }]
});
</script>
</html>

import React, { useRef } from "react";
import { Spreadsheet, Worksheet, jspreadsheet } from "@jspreadsheet/react";
import formula from "@jspreadsheet/formula-pro";
import "jsuites/dist/jsuites.css";
import "jspreadsheet/dist/jspreadsheet.css";

// Set license
jspreadsheet.setLicense('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');

// Set the extensions
jspreadsheet.setExtensions({ formula });

export default function App() {
    // Spreadsheet array of worksheets
    const spreadsheet = useRef();

    // Worksheet data
    const data = [
    [
        "Original Number",
        "Decimal Places",
        "Truncated Result"
    ],
    [
        3.14159,
        2,
        "=TRUNC(A2,B2)"
    ],
    [
        15.789456,
        0,
        "=TRUNC(A3,B3)"
    ],
    [
        -7.654321,
        3,
        "=TRUNC(A4,B4)"
    ],
    [
        100.999,
        1,
        "=TRUNC(A5,B5)"
    ]
];

    // Render component
    return (
        <Spreadsheet ref={spreadsheet}>
            <Worksheet data={data} />
        </Spreadsheet>
    );
}

<template>
    <Spreadsheet ref="spreadsheet">
        <Worksheet :data="data" />
    </Spreadsheet>
</template>

<script>
import { Spreadsheet, Worksheet, jspreadsheet } from "@jspreadsheet/vue";
import "jsuites/dist/jsuites.css";
import "jspreadsheet/dist/jspreadsheet.css";
import formula from "@jspreadsheet/formula-pro";

// Set license
jspreadsheet.setLicense('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');

// Set the extensions
jspreadsheet.setExtensions({ formula });

export default {
    components: {
        Spreadsheet,
        Worksheet,
    },
    data() {
        // Worksheet data
        const data = [
    [
        "Original Number",
        "Decimal Places",
        "Truncated Result"
    ],
    [
        3.14159,
        2,
        "=TRUNC(A2,B2)"
    ],
    [
        15.789456,
        0,
        "=TRUNC(A3,B3)"
    ],
    [
        -7.654321,
        3,
        "=TRUNC(A4,B4)"
    ],
    [
        100.999,
        1,
        "=TRUNC(A5,B5)"
    ]
]

        return {
            data
        };
    }
}
</script>

import { Component, ViewChild, ElementRef } from "@angular/core";
import jspreadsheet from "jspreadsheet";
import * as formula from "@jspreadsheet/formula-pro";

// Set your JSS license key (The following key only works for one day)
jspreadsheet.setLicense('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');

// Set the extensions
jspreadsheet.setExtensions({ formula });

@Component({
    standalone: true,
    selector: "app-root",
    template: `<div #spreadsheet></div>`
})
export class AppComponent {
    @ViewChild("spreadsheet") spreadsheet: ElementRef;
    // Worksheets
    worksheets: jspreadsheet.worksheetInstance[];

    // Create a new data grid
    ngAfterViewInit() {
        // Create spreadsheet
        this.worksheets = jspreadsheet(this.spreadsheet.nativeElement, {
            worksheets: [{
                data: [
    [
        "Original Number",
        "Decimal Places",
        "Truncated Result"
    ],
    [
        3.14159,
        2,
        "=TRUNC(A2,B2)"
    ],
    [
        15.789456,
        0,
        "=TRUNC(A3,B3)"
    ],
    [
        -7.654321,
        3,
        "=TRUNC(A4,B4)"
    ],
    [
        100.999,
        1,
        "=TRUNC(A5,B5)"
    ]
]
            }]
        });
    }
}

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