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author | Benoit Steiner <benoit.steiner.goog@gmail.com> | 2015-07-17 09:29:00 -0700 |
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committer | Benoit Steiner <benoit.steiner.goog@gmail.com> | 2015-07-17 09:29:00 -0700 |
commit | 06a22ca5bd0e34689d4fcff0cdd6edfd1ee76d2d (patch) | |
tree | 4cb45a92a4bd97af28a257d9f0603dd3dc5d356b /unsupported/test/cxx11_tensor_math.cpp | |
parent | 979b73cebfcdd8a4b323e75b4238f21af3036326 (diff) |
Added support for sigmoid function to the tensor module
Diffstat (limited to 'unsupported/test/cxx11_tensor_math.cpp')
-rw-r--r-- | unsupported/test/cxx11_tensor_math.cpp | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/unsupported/test/cxx11_tensor_math.cpp b/unsupported/test/cxx11_tensor_math.cpp new file mode 100644 index 000000000..d247bebaa --- /dev/null +++ b/unsupported/test/cxx11_tensor_math.cpp @@ -0,0 +1,46 @@ +// This file is part of Eigen, a lightweight C++ template library +// for linear algebra. +// +// Copyright (C) 2015 Benoit Steiner <benoit.steiner.goog@gmail.com> +// +// This Source Code Form is subject to the terms of the Mozilla +// Public License v. 2.0. If a copy of the MPL was not distributed +// with this file, You can obtain one at http://mozilla.org/MPL/2.0/. + +#include "main.h" + +#include <Eigen/CXX11/Tensor> + +using Eigen::Tensor; +using Eigen::RowMajor; + +static void test_tanh() +{ + Tensor<float, 1> vec1({6}); + vec1.setRandom(); + + Tensor<float, 1> vec2 = vec1.tanh(); + + for (int i = 0; i < 6; ++i) { + VERIFY_IS_APPROX(vec2(i), tanhf(vec1(i))); + } +} + +static void test_sigmoid() +{ + Tensor<float, 1> vec1({6}); + vec1.setRandom(); + + Tensor<float, 1> vec2 = vec1.sigmoid(); + + for (int i = 0; i < 6; ++i) { + VERIFY_IS_APPROX(vec2(i), 1.0f / (1.0f + std::exp(-vec1(i)))); + } +} + + +void test_cxx11_tensor_math() +{ + CALL_SUBTEST(test_tanh()); + CALL_SUBTEST(test_sigmoid()); +} |