diff --git a/reference/bc/bcmath/number/sqrt.xml b/reference/bc/bcmath/number/sqrt.xml
new file mode 100644
index 000000000000..84b565dfa7e2
--- /dev/null
+++ b/reference/bc/bcmath/number/sqrt.xml
@@ -0,0 +1,141 @@
+
+
+
+ BcMath\Number::sqrt
+ Gets the square root of an arbitrary precision number
+
+
+
+ &reftitle.description;
+
+ public BcMath\NumberBcMath\Number::sqrt
+ intnullscale&null;
+
+
+ Return the square root of this object.
+
+
+
+
+ &reftitle.parameters;
+
+ &bc.number.scale.description;
+
+
+
+
+ &reftitle.returnvalues;
+
+ Returns the square root as a new BcMath\Number object.
+
+
+
+
+ &reftitle.errors;
+
+ This method throws a ValueError in the following cases:
+
+ This object is a negative value
+ scale is outside the valid range
+ BcMath\Number::scale of the result object is outside the valid range
+
+
+
+
+
+
+
+
+ When the BcMath\Number::scale of the result object is automatically set,
+ the BcMath\Number::scale of this object is used. However, in cases such
+ as indivisible division, the BcMath\Number::scale of the result is expanded.
+ Expansion is done only as needed, up to a maximum of +10.
+
+
+ That is, if the BcMath\Number::scale of this object is 5,
+ the BcMath\Number::scale of the result is between 5 and
+ 15.
+
+
+ This behavior is the same as BcMath\Number::div, so please see that for details.
+
+
+
+
+ &reftitle.examples;
+
+ <methodname>BcMath\Number::sqrt</methodname> example
+
+sqrt(),
+ new BcMath\Number('2')->sqrt(3),
+ new BcMath\Number('4')->sqrt(),
+ new BcMath\Number('4')->sqrt(3),
+);
+?>
+]]>
+
+ &example.outputs;
+
+
+ string(12) "1.4142135623"
+ ["scale"]=>
+ int(10)
+}
+object(BcMath\Number)#3 (2) {
+ ["value"]=>
+ string(5) "1.414"
+ ["scale"]=>
+ int(3)
+}
+object(BcMath\Number)#4 (2) {
+ ["value"]=>
+ string(1) "2"
+ ["scale"]=>
+ int(0)
+}
+object(BcMath\Number)#5 (2) {
+ ["value"]=>
+ string(5) "2.000"
+ ["scale"]=>
+ int(3)
+}
+]]>
+
+
+
+
+
+ &reftitle.seealso;
+
+ bcsqrt
+ BcMath\Number::div
+ BcMath\Number::pow
+
+
+
+
+
diff --git a/reference/bc/functions/bcsqrt.xml b/reference/bc/functions/bcsqrt.xml
index 4da28a897f1d..077c653e3105 100644
--- a/reference/bc/functions/bcsqrt.xml
+++ b/reference/bc/functions/bcsqrt.xml
@@ -113,6 +113,7 @@ echo bcsqrt('2', 3); // 1.414
bcpow
+ BcMath\Number::sqrt