Machine learning Curve fitting using MATLAB

here is the code for the data set we have taken.



>> clear;
close all;
Tx = [80: -20: -340];
alphay=[6.47  6.36 6.24 6.12 6.00 5.86 5.72 5.58 5.43 5.28 5.09 4.91 4.72 4.52 4.30 4.08 3.83 3.58 3.33 3.07 2.76 2.45];
alphay=1.e-6*alphay;
plot(Tx,alphay,'bo');


title('Thermal expansion cofficient of steel');
ylabel('cofficient\alpha');
xlabel('temperature(in F)');
>> coef1=polyfit(Tx,alphay,1)

Computer Networks all chapter Notebook From the book> Behrouz A. Forouzan,"Computer Networks",4th edition, McGraw-Hill PPT slides,

Behrouz A. Forouzan,"Computer Networks",4th edition, McGraw-Hill PPT slides,

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Sr. No.	Chapter Name
Overview
1	Introduction
2	Network Models
Physical Layer and Media
3	Data and Signals
4	Digital Transmission
5	Analog Transmission
6	Bandwidth Utilization: Multiplexing and Spreading
7	Transmission Media
8	Switching
9	Using Telephone and Cable Networks for Data Transmission
Data Link Layer
10	Error Detection and Correction
11	Data Link Control
12	Multiple Access
13	Wired LANs: Ethernet
14	Wireless LANs
15	Connecting LANs, Backbone Networks, and Virtual LANs
16	Wireless WANs: Cellular Telephone and Satellite Networks
17	SONETISDH
18	Virtual-Circuit Nenvorks: Frame Relay and ATM
Network Layer
19	Network Layer: Logical Addressing
20	Network Layer: Internet Protocol
21	Network Layer: Address Mapping, Error Reporting, and Multicasting
22	Network Layer: Delivery, Forwarding, and Routing
Transport Layer
23	Process-to-Process Delivery: UDP, TCP, and SCTP
24	Congestion Control and Quality of Service
Application Layer
25	Domain Name System
26	Remote Logging, Electronic Mail, and File Transfer
27	WWW and HTTP
28	Network Management: SNMP
29	Multimedia
Security
30	Cryptography
31	Network Security
32	Security in the Internet: IPSec, SSLlTLS, PCp, VPN, and Firewalls