### Description
Compute sqrt(a) and store the result in d.
### Syntax
```
sqrt.approx{.ftz}.f32 d, a; // fast, approximate square root
sqrt.rnd{.ftz}.f32 d, a; // IEEE 754 compliant rounding
sqrt.rnd.f64 d, a; // IEEE 754 compliant rounding
.rnd = { .rn, .rz, .rm, .rp };
```
### Semantics
```
d = sqrt(a);
```
### Examples
```
sqrt.approx.ftz.f32 r,x;
sqrt.rn.ftz.f32 r,x;
sqrt.rn.f64 r,x;
```