python · icoder-new · Mar 13, 2021 · Mar 13, 2021 · Mar 13, 2021 · Mar 13, 2021
diff --git a/Misc/NEWS.d/next/Tools-Demos/2021-03-13-18-22-58.bpo-43488.bzjZFP.rst b/Misc/NEWS.d/next/Tools-Demos/2021-03-13-18-22-58.bpo-43488.bzjZFP.rst
@@ -0,0 +1,9 @@
+What's new in Vector (vector.py)
+
+1) Added multiplay (Vector and Vector)
+2) Added division (Vector and Vector) and (Vector and scalar)
+3) Added FloorDiv (Vector and Vector) and (Vector and scalar)
+4) Added __mod__ (Vector and Vector) and (Vector and scalar)
+
+This new methods is very useful!
+[It is beta version! By the way we will fix bugs]
diff --git a/Tools/demo/vector.py b/Tools/demo/vector.py
@@ -1,10 +1,13 @@
-#!/usr/bin/env python3
+#!/usr/bin/python
+# -*- coding: utf-8 -*-

 """
 A demonstration of classes and their special methods in Python.
 """

+
 class Vec:
+
    """A simple vector class.

    Instances of the Vec class can be constructed from numbers
@@ -27,7 +30,9 @@ class Vec:
    or on the right
    >>> a * 3.0
    Vec(3.0, 6.0, 9.0)
+
    """
+
    def __init__(self, *v):
        self.v = list(v)

@@ -50,25 +55,57 @@ def __getitem__(self, i):
        return self.v[i]

    def __add__(self, other):
+
        # Element-wise addition
-        v = [x + y for x, y in zip(self.v, other.v)]
+
+        v = [x + y for (x, y) in zip(self.v, other.v)]
        return Vec.fromlist(v)

    def __sub__(self, other):
+
        # Element-wise subtraction
-        v = [x - y for x, y in zip(self.v, other.v)]
-        return Vec.fromlist(v)

-    def __mul__(self, scalar):
-        # Multiply by scalar
-        v = [x * scalar for x in self.v]
+        v = [x - y for (x, y) in zip(self.v, other.v)]
        return Vec.fromlist(v)

+    def __mul__(self, other):
+        if isinstance(other, int) or isinstance(other, float):
+            m = [x * other for x in self.matrix]
+        else:
+            m = [x * y for (x, y) in zip(self.matrix, other.matrix)]
+
+        return Matrix.fromlist(m)
+
+    def __truediv__(self, other):
+        if isinstance(other, int) or isinstance(other, float):
+            m = [x / other for x in self.matrix]
+        else:
+            m = [x / y for (x, y) in zip(self.matrix, other.matrix)]
+
+        return Matrix.fromlist(m)
+
+    def __floordiv__(self, other):
+        if isinstance(other, int) or isinstance(other, float):
+            m = [x // other for x in self.matrix]
+        else:
+            m = [x // y for (x, y) in zip(self.matrix, other.matrix)]
+
+        return Matrix.fromlist(m)
+
+    def __mod__(self, other):
+        if isinstance(other, int) or isinstance(other, float):
+            m = [x % other for x in self.matrix]
+        else:
+            m = [x % y for (x, y) in zip(self.matrix, other.matrix)]
+
+        return Matrix.fromlist(m)
+
    __rmul__ = __mul__


 def test():
    import doctest
    doctest.testmod()

+
 test()