index.md

---

title: Square root
slug: WebAssembly/Reference/Numeric/Square_root

---

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The sqrt instructions, short for square root, are used to get the square root of a number.

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Syntax

;; load a number onto the stack
f32.const 289

;; get the square root of 289
f32.sqrt

;; the top item on the stack will now be 17

Instruction	Binary opcode
f32.sqrt	0x91
f64.sqrt	0x9f