# Ruby | BigDecimal sqrt() function

• Last Updated : 06 Dec, 2019

BigDecimal#sqrt() : sqrt() is a BigDecimal class method which returns the square root of the value.

Syntax: BigDecimal.sqrt()

Parameter: BigDecimal values

Return: the square root of the value.

Example #1 :

 `# Ruby code for BigDecimal.sqrt() method`` ` `# loading library``require ``'bigdecimal'`` ` `# declaring bigdecimal``a = BigDecimal(``"10"``)`` ` `# declaring bigdecimal``b = BigDecimal(``"1000"``) *``2`` ` `# declaring bigdecimal``c = BigDecimal(``"11.43"``)`` ` `# sqrt() method``puts ``"BigDecimal a sqrt method : #{Math.sqrt(a)}\n\n"`` ` `puts ``"BigDecimal b sqrt method : #{Math.sqrt(b)}\n\n"`` ` `puts ``"BigDecimal a sqrt method : #{Math.sqrt(c)}\n\n"`

Output :

```BigDecimal a sqrt method : 3.1622776601683795

BigDecimal b sqrt method : 44.721359549995796

BigDecimal a sqrt method : 3.380828300875393

```

Example #2 :

 `# Ruby code for BigDecimal.sqrt() method`` ` `# loading library``require ``'bigdecimal'`` ` `# declaring bigdecimal``a = BigDecimal(``'12'``)*``12`` ` `# declaring bigdecimal``b = BigDecimal(``'10'``)+(``22` `** ``7``.``1``) ** ``10`` ` `# declaring bigdecimal``c = -BigDecimal(``'-3'``)`` ` `# sqrt() method``puts ``"BigDecimal a sqrt method : #{Math.sqrt(a)}\n\n"`` ` `puts ``"BigDecimal b sqrt method : #{Math.sqrt(b)}\n\n"`` ` `puts ``"BigDecimal a sqrt method : #{Math.sqrt(c)}\n\n"`

Output :

```BigDecimal a sqrt method : 12.0

BigDecimal b sqrt method : 4.5290297054731975e+47

BigDecimal a sqrt method : 1.7320508075688772

```

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