From 76f3e04b9895cf650d202557c9e042316c4bdc99 Mon Sep 17 00:00:00 2001
From: stepan_svoboda <stepan.svo@seznam.cz>
Date: Mon, 8 Jun 2020 14:50:09 +0200
Subject: [PATCH 1/3] 1_5 solution

---
 Work/bounce.py | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/Work/bounce.py b/Work/bounce.py
index 3660ddd82..a1f76ef40 100644
--- a/Work/bounce.py
+++ b/Work/bounce.py
@@ -1,3 +1,12 @@
 # bounce.py
 #
 # Exercise 1.5
+
+height = 100
+i = 0
+
+while i <= 10:
+    i += 1
+    height *= 0.6
+    height = round(height, ndigits=4)
+    print(f'{i} {height}')

From 4e3444902018d283adbc7d418ae9adef0c775ba0 Mon Sep 17 00:00:00 2001
From: stepan_svoboda <stepan.svo@seznam.cz>
Date: Mon, 8 Jun 2020 15:20:39 +0200
Subject: [PATCH 2/3] 1_10 solution

---
 Work/mortgage.py | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/Work/mortgage.py b/Work/mortgage.py
index d527314e3..9330b7d7a 100644
--- a/Work/mortgage.py
+++ b/Work/mortgage.py
@@ -1,3 +1,30 @@
 # mortgage.py
 #
 # Exercise 1.7
+
+principal = 500000.0
+rate = 0.05
+payment = 2684.11
+total_paid = 0.0
+month = 0
+
+extra_payment = 1000
+extra_payment_start_month = 60
+extra_payment_end_month = 108
+
+while principal > 0:
+
+    if principal < payment:
+        payment = principal * (1+rate/12)
+
+    month += 1
+    principal = principal * (1+rate/12) - payment
+    total_paid = total_paid + payment
+
+    if extra_payment_start_month <= month <= extra_payment_end_month:
+        principal -= extra_payment
+        total_paid += extra_payment
+
+    print(month, round(total_paid, 2), round(principal, 2))
+
+print('Total paid', total_paid)

From 92fe0d8ee1f9a63ef893de4ab569423be54b616b Mon Sep 17 00:00:00 2001
From: stepan_svoboda <stepan.svo@seznam.cz>
Date: Mon, 8 Jun 2020 15:39:28 +0200
Subject: [PATCH 3/3] 1_27 solution

---
 Work/pcost.py | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/Work/pcost.py b/Work/pcost.py
index e68aa20b4..a714b1537 100644
--- a/Work/pcost.py
+++ b/Work/pcost.py
@@ -1,3 +1,13 @@
 # pcost.py
 #
 # Exercise 1.27
+
+overall_cost = 0
+
+with open('Data/portfolio.csv', 'rt') as file:
+    next(file)
+    for line in file:
+        _, no_shares, price = line.split(',')
+        overall_cost += int(no_shares) * float(price)
+
+print(f'Total cost {overall_cost}')