From d56f20cf0a2c518460a0fd0f121b114b90ff7b70 Mon Sep 17 00:00:00 2001
From: Jayesh Vasudeva <42416623+0tist@users.noreply.github.com>
Date: Mon, 19 Oct 2020 11:15:47 +0530
Subject: [PATCH 1/2] Update mathgen.py

---
 mathgenerator/mathgen.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/mathgenerator/mathgen.py b/mathgenerator/mathgen.py
index 0e813a6..e015c81 100644
--- a/mathgenerator/mathgen.py
+++ b/mathgenerator/mathgen.py
@@ -156,3 +156,5 @@ complexNumMultiply = Generator("Multiplication of 2 complex numbers", 64, "(x +
 geometricprogression=Generator("Geometric Progression", 65, "Initial value,Common Ratio,nth Term,Sum till nth term =", "a,r,ar^n-1,sum(ar^n-1", geomProgrFunc)
 geometricMean=Generator("Geometric Mean of N Numbers",66,"Geometric mean of n numbers A1 , A2 , ... , An = ","(A1*A2*...An)^(1/n) = ans",geometricMeanFunc)
 harmonicMean=Generator("Harmonic Mean of N Numbers",67,"Harmonic mean of n numbers A1 , A2 , ... , An = "," n/((1/A1) + (1/A2) + ... + (1/An)) = ans",harmonicMeanFunc)
+eucldianNorm=Generator("Euclidian norm or L2 norm of a vector", 68, "Euclidian Norm of a vector V:[v1, v2, ......., vn]", "sqrt(v1^2 + v2^2 ........ +vn^2)", euclidianNorm)
+angleBtwVectors=Generator("Angle between 2 vectors", 69, "Angle Between 2 vectors V1=[v11, v12, ..., v1n] and V2=[v21, v22, ....., v2n]", "V1.V2 / (euclidNorm(V1)*euclidNorm(V2))", AngleBtwVectors)

From 07cae1b56b7da4882d478cdd951909736928c00f Mon Sep 17 00:00:00 2001
From: Jayesh Vasudeva <42416623+0tist@users.noreply.github.com>
Date: Mon, 19 Oct 2020 11:17:40 +0530
Subject: [PATCH 2/2] Add files via upload

---
 mathgenerator/funcs/AngleBtwVectors.py | 16 ++++++++++++++++
 mathgenerator/funcs/eucldianNorm.py    |  7 +++++++
 2 files changed, 23 insertions(+)
 create mode 100644 mathgenerator/funcs/AngleBtwVectors.py
 create mode 100644 mathgenerator/funcs/eucldianNorm.py

diff --git a/mathgenerator/funcs/AngleBtwVectors.py b/mathgenerator/funcs/AngleBtwVectors.py
new file mode 100644
index 0000000..09e0a11
--- /dev/null
+++ b/mathgenerator/funcs/AngleBtwVectors.py
@@ -0,0 +1,16 @@
+import eucldianNorm
+import math
+from .__init__ import *
+
+
+def AngleBtwVectors(v1: list, v2: list):
+    sum = 0
+    for i in v1:
+        for j in v2:
+            sum += i * j
+
+    mags = euclidianNorm(v1) * euclidianNorm(v2)
+    problem = f"angle between the vectors {v1} and {v2} is:"
+    solution = math.acos(sum / mags)
+    # would return the answer in radians
+    return problem, solution
diff --git a/mathgenerator/funcs/eucldianNorm.py b/mathgenerator/funcs/eucldianNorm.py
new file mode 100644
index 0000000..b672add
--- /dev/null
+++ b/mathgenerator/funcs/eucldianNorm.py
@@ -0,0 +1,7 @@
+from .__init__ import *
+
+
+def euclidianNorm(v1: list):
+    problem = f"Euclidian norm or L2 norm of the vector{v1} is:"
+    solution = sqrt(sum([i**2 for i in v1]))
+    return problem, solution