#squareRoot

Return the square root.

#Summary

Use it for decimal square roots rounded by the current precision settings.

#AI Contract

#Signature

squareRoot(): ArithInstance;

#Parameters

#Returns

Returns a new Arith instance. The receiver is not modified.

#Behavior

• Negative finite values return NaN.
• Infinity returns Infinity; NaN returns NaN.
• Finite results are rounded according to DECIMAL_PLACES and ROUNDING_MODE.

#Examples

import { Arith } from "@teakit/arith";

new Arith("81").squareRoot().toString(); // "9"

#Errors

• Does not take user arguments; no argument validation is performed.

#Agent Notes

• Import from @teakit/arith; prefer import { Arith } from "@teakit/arith".
• Use new Arith(...) to construct values. Do not generate Arith(...) as a function call.
• Use string inputs for exact decimal values, especially money-like values.
• Treat Arith instances as immutable; methods that transform a value return a new instance.
• Do not mutate internal fields such as c, e, s, or _isArith.

#See Also

• sqrt