rename files and add license

5 files changed, 31 insertions, 0 deletions

diff --git a/LICENSE.txt b/LICENSE.txt
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index 0000000..9298b31
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+++ b/LICENSE.txt
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+HP35s Programs
+Copyright (C) 2017 mafaldo <alepori@thearcway.org>
+
+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 2
+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, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
diff --git a/P b/P_vector_cross_product
index 1f7c66a..1f7c66a 100644
--- a/P
+++ b/P_vector_cross_product
diff --git a/Q b/Q_quadratic_solver
index 1ff2a0d..1ff2a0d 100644
--- a/Q
+++ b/Q_quadratic_solver
diff --git a/README.md b/README.md
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+# HP35s programs
+
+## Description
+
+Programs to add funcionality to the HP35s calculator
+
+## Contents
+
+*****S** - Save (S001) and restore (S011) the stack in/from (J) 10-13.
+
+**Q** - Solve quadratic equation, it takes a, b and c from the stack and it
+doesn't use any variables.
+
+**P** - Cross product between two vectors, it takes the vectors from the stack.
+It uses (J) 105-110 and (I) 100-102
diff --git a/S b/S_save_stack
index f95e442..f95e442 100644
--- a/S
+++ b/S_save_stack