105 lines
3.7 KiB
C++
105 lines
3.7 KiB
C++
// SPDX-License-Identifier: Apache-2.0
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//
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// Copyright 2015 Conrad Sanderson (http://conradsanderson.id.au)
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// Copyright 2015 National ICT Australia (NICTA)
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// ------------------------------------------------------------------------
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#include <armadillo>
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#include "catch.hpp"
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using namespace arma;
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TEST_CASE("mat_minus_1")
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{
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mat A =
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"\
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0.061198 0.201990 0.019678 -0.493936 -0.126745 0.051408;\
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0.437242 0.058956 -0.149362 -0.045465 0.296153 0.035437;\
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-0.492474 -0.031309 0.314156 0.419733 0.068317 -0.454499;\
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0.336352 0.411541 0.458476 -0.393139 -0.135040 0.373833;\
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0.239585 -0.428913 -0.406953 -0.291020 -0.353768 0.258704;\
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";
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mat B = fliplr(A);
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mat A_minus_B =
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"\
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0.0097900 0.3287350 0.5136140 -0.5136140 -0.3287350 -0.0097900;\
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0.4018050 -0.2371970 -0.1038970 0.1038970 0.2371970 -0.4018050;\
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-0.0379750 -0.0996260 -0.1055770 0.1055770 0.0996260 0.0379750;\
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-0.0374810 0.5465810 0.8516150 -0.8516150 -0.5465810 0.0374810;\
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-0.0191190 -0.0751450 -0.1159330 0.1159330 0.0751450 0.0191190;\
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";
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mat neg_of_A_minus_B =
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"\
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-0.0097900 -0.3287350 -0.5136140 +0.5136140 +0.3287350 +0.0097900;\
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-0.4018050 +0.2371970 +0.1038970 -0.1038970 -0.2371970 +0.4018050;\
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+0.0379750 +0.0996260 +0.1055770 -0.1055770 -0.0996260 -0.0379750;\
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+0.0374810 -0.5465810 -0.8516150 +0.8516150 +0.5465810 -0.0374810;\
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+0.0191190 +0.0751450 +0.1159330 -0.1159330 -0.0751450 -0.0191190;\
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";
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mat X = A - B;
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REQUIRE( X(0,0) == Approx( 0.0097900) );
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REQUIRE( X(1,0) == Approx( 0.4018050) );
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REQUIRE( X(2,0) == Approx(-0.0379750) );
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REQUIRE( X(3,0) == Approx(-0.0374810) );
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REQUIRE( X(4,0) == Approx(-0.0191190) );
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REQUIRE( X(0,1) == Approx( 0.3287350) );
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REQUIRE( X(1,1) == Approx(-0.2371970) );
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REQUIRE( X(2,1) == Approx(-0.0996260) );
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REQUIRE( X(3,1) == Approx( 0.5465810) );
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REQUIRE( X(4,1) == Approx(-0.0751450) );
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REQUIRE( X(0,5) == Approx(-0.0097900) );
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REQUIRE( X(1,5) == Approx(-0.4018050) );
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REQUIRE( X(2,5) == Approx( 0.0379750) );
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REQUIRE( X(3,5) == Approx( 0.0374810) );
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REQUIRE( X(4,5) == Approx( 0.0191190) );
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mat Y = (2*A - 2*B) / 2;
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REQUIRE( Y(0,0) == Approx( 0.0097900) );
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REQUIRE( Y(1,0) == Approx( 0.4018050) );
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REQUIRE( Y(2,0) == Approx(-0.0379750) );
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REQUIRE( Y(3,0) == Approx(-0.0374810) );
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REQUIRE( Y(4,0) == Approx(-0.0191190) );
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REQUIRE( Y(0,1) == Approx( 0.3287350) );
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REQUIRE( Y(1,1) == Approx(-0.2371970) );
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REQUIRE( Y(2,1) == Approx(-0.0996260) );
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REQUIRE( Y(3,1) == Approx( 0.5465810) );
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REQUIRE( Y(4,1) == Approx(-0.0751450) );
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REQUIRE( Y(0,5) == Approx(-0.0097900) );
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REQUIRE( Y(1,5) == Approx(-0.4018050) );
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REQUIRE( Y(2,5) == Approx( 0.0379750) );
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REQUIRE( Y(3,5) == Approx( 0.0374810) );
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REQUIRE( Y(4,5) == Approx( 0.0191190) );
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REQUIRE( accu(mat(A-B) + (neg_of_A_minus_B)) == Approx(0.0).margin(0.001) );
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REQUIRE( accu( (A-B) + (neg_of_A_minus_B)) == Approx(0.0).margin(0.001) );
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REQUIRE( accu(abs( 2*(A-B) + 2*neg_of_A_minus_B )) == Approx(0.0).margin(0.001) );
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// REQUIRE_THROWS( );
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}
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