In PowerShell, you can remove everything after the decimal place from a number stored as a string or a floating-point number using various methods. Lets imagine we have the number “82.91373001”, and we wish to remove the numbers after the decimal place to give us 82.

Below are a few approaches to achieve this:

## Using String Manipulation

If your variable is a string, you can use string manipulation to remove everything after the decimal place.

# Example string variable $numberString = "82.91373001" # Split the string at the decimal point and take the first part $integerPart = $numberString.Split('.')[0] # Output the result $integerPart

## Using Type Conversion (Casting)

If your variable is a number, you can cast it to an integer to remove the decimal part.

# Example floating-point number variable $number = 82.91373001 # Cast the number to an integer $integerPart = [int]$number # Output the result $integerPart

## Using Math Functions

Alternatively, you can use mathematical functions to achieve the same result.

**Using [Math]::Truncate()**

# Example floating-point number variable $number = 82.91373001 # Use the Math.Truncate method to remove the decimal part $integerPart = [Math]::Truncate($number) # Output the result $integerPart

**Using [Math]::Floor()**

Another way to achieve this, which will also handle negative numbers correctly (truncating towards zero), is using `[Math]::Floor()`

:

# Example floating-point number variable $number = 82.91373001 # Use the Math.Floor method to remove the decimal part $integerPart = [Math]::Floor($number) # Output the result $integerPart

## Summary

**String Manipulation:**Suitable when the number is in string format.**Type Conversion:**Direct and efficient for numerical variables.**Math Functions:**Useful for more advanced scenarios or when you want to ensure proper handling of floating-point numbers.

Here is a combined example that demonstrates all three methods:

# String manipulation $numberString = "82.91373001" $integerPartString = $numberString.Split('.')[0] # Type conversion $number = 82.91373001 $integerPartConversion = [int]$number # Math function (Truncate) $integerPartTruncate = [Math]::Truncate($number) # Output results "String Manipulation: $integerPartString" "Type Conversion: $integerPartConversion" "Math Truncate: $integerPartTruncate"

Choose the method that best fits your needs based on the format of your input data and the context in which you are working.