# What is Truncation in Mathematics and How Does it Work?

Truncation is an important concept in mathematics and computer science that can be used to approximate numbers and limit the number of digits after the decimal point. Learn more about how it works here. Truncation is a method of approximating a decimal number by removing all decimal places beyond a certain point without rounding. It is commonly used in mathematics and computer science to limit the number of digits to the right of the decimal point. To truncate a number, we omit digits beyond a certain point in the number, filling in zeros if necessary to make the truncated number approximately the same size as the original number. The Math, trunc() function returns the integer part of a number by removing the fractional digits.

Truncation consists of shortening a number by a given place value and filling in any zero to keep it the same size. There are also truncation worksheets based on the Edexcel, AQA, and OCR exam questions, along with more guidance on where to go next if you're still stuck. With computers, truncation can occur when a decimal number was typecast as an integer; it is truncated to zero decimal digits because integers cannot store non-integer real numbers. The algorithm for truncating positive numbers involves subtracting 0.5 from a value and then rounding it.

Java has included a method in its standard library that will do this for you. It is common for stage 3 to be omitted and for a number such as 3547 to be truncated to 35 to 2 significant digits. Note that the domains of the truncation function and the rounding function for any given return value are offset exactly 0.5.Truncates (cuts) the period and digits to its right, regardless of whether the argument is a positive or negative number. Truncation is an important concept in mathematics and computer science that can be used to approximate numbers and limit the number of digits after the decimal point.

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