diff --git a/src/lib.rs b/src/lib.rs
index 8dc7387..f61cec0 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -49,4 +49,12 @@ pub mod ceilf;
 #[path = "math/copysign.rs"]
 pub mod copysign;
 #[path = "math/copysignf.rs"]
-pub mod copysignf;
\ No newline at end of file
+pub mod copysignf;
+#[path = "math/cos.rs"]
+pub mod cos;
+#[path = "math/cosf.rs"]
+pub mod cosf;
+#[path = "math/cosh.rs"]
+pub mod cosh;
+#[path = "math/coshf.rs"]
+pub mod coshf;
\ No newline at end of file
diff --git a/src/math/cos.rs b/src/math/cos.rs
new file mode 100644
index 0000000..a13c58a
--- /dev/null
+++ b/src/math/cos.rs
@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: MPL-2.0
+/*
+ * File: src/math/cos.rs
+ *
+ * The cos function.
+ *
+ * Author: HTG-YT
+ * Copyright (c) 2021 The LibM Team of the HaruxOS Project
+ */
+
+#[no_mangle]
+pub extern "C" fn cos(x: f64) -> f64 {
+    libm::cos(x)
+}
\ No newline at end of file
diff --git a/src/math/cosf.rs b/src/math/cosf.rs
new file mode 100644
index 0000000..c61f31d
--- /dev/null
+++ b/src/math/cosf.rs
@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: MPL-2.0
+/*
+ * File: src/math/cosf.rs
+ *
+ * The cosf function.
+ *
+ * Author: HTG-YT
+ * Copyright (c) 2021 The LibM Team of the HaruxOS Project
+ */
+
+#[no_mangle]
+pub extern "C" fn cosf(x: f32) -> f32 {
+    libm::cosf(x)
+}
\ No newline at end of file
diff --git a/src/math/cosh.rs b/src/math/cosh.rs
new file mode 100644
index 0000000..8805a77
--- /dev/null
+++ b/src/math/cosh.rs
@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: MPL-2.0
+/*
+ * File: src/math/cosh.rs
+ *
+ * The cosh function.
+ *
+ * Author: HTG-YT
+ * Copyright (c) 2021 The LibM Team of the HaruxOS Project
+ */
+
+#[no_mangle]
+pub extern "C" fn cosh(x: f64) -> f64 {
+    libm::cosh(x)
+}
\ No newline at end of file
diff --git a/src/math/coshf.rs b/src/math/coshf.rs
new file mode 100644
index 0000000..1c88340
--- /dev/null
+++ b/src/math/coshf.rs
@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: MPL-2.0
+/*
+ * File: src/math/coshf.rs
+ *
+ * The coshf function.
+ *
+ * Author: HTG-YT
+ * Copyright (c) 2021 The LibM Team of the HaruxOS Project
+ */
+
+#[no_mangle]
+pub extern "C" fn coshf(x: f32) -> f32 {
+    libm::coshf(x)
+}
\ No newline at end of file