         }
     }
     
-    func testSin() {
+    func testSinNormal() {
         do {
             let elements: [Float] = [0, 0.5, 1, 1.5]
             let a = NDArray(shape: [2, 2], elements: elements)

        }
    }
    
    func testTan() {
        do {
            let elements: [Float] = [0, 0.5, 1, 1.5]
            let a = NDArray(shape: [2, 2], elements: elements)

        }
    }
    
    func testLogNormal() {
        do {
            let elements: [Float] = [0.1, 0.5, 1, 1.5]
            let a = NDArray(shape: [2, 2], elements: elements)
