Add godoc

itsubaki · Jan 13, 2025 · 2b96ec8 · 2b96ec8
1 parent 272f982
commit 2b96ec8
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/quantum/gate/gate.go b/quantum/gate/gate.go
@@ -134,6 +134,7 @@ func RZ(theta float64) matrix.Matrix {
 }
 
 // Controlled returns a controlled-u gate.
+// u is a (2x2) unitary matrix and returns a (2**n x 2**n) matrix.
 func Controlled(u matrix.Matrix, n int, c []int, t int) matrix.Matrix {
 	var mask int
 	for _, bit := range c {