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reasoningaboutspace
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added function for creating rotation matrix

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Gabri6 2023-02-03 11:21:01 +01:00
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README.md
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# reasoningaboutspace # reasoningaboutspace
we are doing this to try the tests functions about rotation matrix we are doing this to try the tests functions about rotation matrix
create2DRotationMatrix.m takes the rotation angle z, and returns the corresponding rotation matrix

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create2DRotationMatrix.m Normal file
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## Copyright (C) 2023 gabri
##
## This program is free software: you can redistribute it and/or modify
## it under the terms of the GNU General Public License as published by
## the Free Software Foundation, either version 3 of the License, or
## (at your option) any later version.
##
## This program is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
## GNU General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with this program. If not, see <https://www.gnu.org/licenses/>.
## -*- texinfo -*-
## @deftypefn {} {@var{retval} =} create2DRotationMatrix (@var{input1}, @var{input2})
##
## @seealso{}
## @end deftypefn
## Author: gabri <gabri@DESKTOP-AA36H6D>
## Created: 2023-02-03
function myrotationmatrix = create2DRotationMatrix (z)
%%%%%%%%%%%%%%%%%
%the function create2DRotationMatrix takes an agle in degrees as a argument,
%and returns the corresponding 2D rotation matrix
%
%
% INPUT : rotation angle in degrees
%
% OUTPUT : rotation matrix in size 2 by 2
%
%Created by: Gabriel LUCAS
%Date Creation: 03/02/2023 11:05:22
%
%Last Modified: 03/02/2023 11:06:51
%%%%%%%%%%%%%%%%%%
z = z*(pi/180);
myrotationmatrix = [cos(z),sin(z);(-sin(z)),cos(z)]
%test
angle = 90;
expectedrotationmatrix = [0 1;-1 0];
angle = angle*(pi/180);
testrotationmatrix = [cos(angle),sin(angle);(-sin(angle)),cos(angle)]
if (abs(abs(expectedrotationmatrix .- testrotationmatrix)) < 1e-10)
disp("Test #1 Passed")
else
disp("Test #1 Failed")
endif
endfunction