added tanh operation for matrix

1 files changed, 21 insertions, 0 deletions

diff --git a/nerv/matrix/generic/cumatrix.c b/nerv/matrix/generic/cumatrix.c
index e1519b0..3d9e694 100644
--- a/nerv/matrix/generic/cumatrix.c
+++ b/nerv/matrix/generic/cumatrix.c
@@ -62,6 +62,25 @@ static int nerv_matrix_(lua_sigmoid_grad)(lua_State *L) {
     return 0;
 }
 
+static int nerv_matrix_(lua_tanh)(lua_State *L) {
+    Status status;
+    Matrix *a = luaT_checkudata(L, 1, nerv_matrix_(tname));
+    Matrix *b = luaT_checkudata(L, 2, nerv_matrix_(tname));
+    nerv_matrix_(tanh)(a, b, &status);
+    NERV_LUA_CHECK_STATUS(L, status);
+    return 0;
+}
+
+static int nerv_matrix_(lua_tanh_grad)(lua_State *L) {
+    Status status;
+    Matrix *nerr = luaT_checkudata(L, 1, nerv_matrix_(tname));
+    Matrix *err = luaT_checkudata(L, 2, nerv_matrix_(tname));
+    Matrix *output = luaT_checkudata(L, 3, nerv_matrix_(tname));
+    nerv_matrix_(tanh_grad)(nerr, err, output, &status);
+    NERV_LUA_CHECK_STATUS(L, status);
+    return 0;
+}
+
 static int nerv_matrix_(lua_softmax)(lua_State *L) {
     Status status;
     Matrix *a = luaT_checkudata(L, 2, nerv_matrix_(tname));
@@ -328,6 +347,8 @@ static const luaL_Reg nerv_matrix_(extra_methods)[] = {
     {"fill", nerv_matrix_(lua_fill)},
     {"sigmoid", nerv_matrix_(lua_sigmoid)},
     {"sigmoid_grad", nerv_matrix_(lua_sigmoid_grad)},
+    {"tanh", nerv_matrix_(lua_tanh)},
+    {"tanh_grad", nerv_matrix_(lua_tanh_grad)},
     {"softmax", nerv_matrix_(lua_softmax)},
     {"mul_elem", nerv_matrix_(lua_mul_elem)},
     {"log_elem", nerv_matrix_(lua_log_elem)},