diff --git a/mat64/cholesky.go b/mat64/cholesky.go
index cd2a189..9343736 100644
--- a/mat64/cholesky.go
+++ b/mat64/cholesky.go
@@ -100,46 +100,15 @@ func (m *Dense) SolveTri(t *Triangular, b Matrix) error {
 		m.Copy(b)
 	}
 
-	if t.mat.Uplo == blas.Upper {
-		// Solve U'*Y = B;
-		for k := 0; k < n; k++ {
-			for j := 0; j < bn; j++ {
-				for i := 0; i < k; i++ {
-					m.set(k, j, m.at(k, j)-m.at(i, j)*t.at(i, k))
-				}
-				m.set(k, j, m.at(k, j)/t.at(k, k))
-			}
-		}
-
-		// Solve U*X = Y;
-		for k := n - 1; k >= 0; k-- {
-			for j := 0; j < bn; j++ {
-				for i := k + 1; i < n; i++ {
-					m.set(k, j, m.at(k, j)-m.at(i, j)*t.at(k, i))
-				}
-				m.set(k, j, m.at(k, j)/t.at(k, k))
-			}
-		}
-	} else {
-		// Solve L*Y = B;
-		for k := 0; k < n; k++ {
-			for j := 0; j < bn; j++ {
-				for i := 0; i < k; i++ {
-					m.set(k, j, m.at(k, j)-m.at(i, j)*t.at(k, i))
-				}
-				m.set(k, j, m.at(k, j)/t.at(k, k))
-			}
-		}
-
-		// Solve L'*X = Y;
-		for k := n - 1; k >= 0; k-- {
-			for j := 0; j < bn; j++ {
-				for i := k + 1; i < n; i++ {
-					m.set(k, j, m.at(k, j)-m.at(i, j)*t.at(i, k))
-				}
-				m.set(k, j, m.at(k, j)/t.at(k, k))
-			}
-		}
+	switch t.mat.Uplo {
+	case blas.Upper:
+		blas64.Trsm(blas.Left, blas.Trans, 1, t.mat, m.mat)
+		blas64.Trsm(blas.Left, blas.NoTrans, 1, t.mat, m.mat)
+	case blas.Lower:
+		blas64.Trsm(blas.Left, blas.NoTrans, 1, t.mat, m.mat)
+		blas64.Trsm(blas.Left, blas.Trans, 1, t.mat, m.mat)
+	default:
+		panic(ErrUplo)
 	}
 
 	return nil