1 files changed, 46 insertions, 0 deletions
diff --git a/mathunit.pas b/mathunit.pas
new file mode 100644
index 0000000..3d5e111
--- /dev/null
+++ b/mathunit.pas
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+unit mathunit;
+
+{$mode objfpc}{$H+}
+
+interface
+
+uses
+  Classes, SysUtils;
+
+type
+  tExtPoint = record
+    x,y: extended;
+  end;
+  tExtPointArray = array of tExtPoint;
+  pTExtPointArray = ^tExtPointArray;
+  tLongintArray = array of longint;
+  pTLongintArray = ^tLongintArray;
+  tExtendedArray = array of extended;
+
+function Plus(a,b: tExtPoint): tExtPoint;
+function Durch(a: tExtPoint; b: extended): tExtPoint;
+function myFrac(x: extended): extended;
+
+implementation
+
+function Plus(a,b: tExtPoint): tExtPoint;
+begin
+  result.x:=a.x+b.x;
+  result.y:=a.y+b.y;
+end;
+
+function Durch(a: tExtPoint; b: extended): tExtPoint;
+begin
+  result.x:=a.x/b;
+  result.y:=a.y/b;
+end;
+
+function myFrac(x: extended): extended;
+begin
+  result:=frac(x);
+  while result<0 do
+    result:=result+1;
+end;
+
+end.
+