Unit Conversion using Algebraic Techniques

Unit conversion is one of those concepts of my Educational life which consumed huge amount of brain energy and time. But i was successful in finding the solution which is working most of the time for me. Its lengthy but accurate and error free.
First of all you have to memorize all some basic units like 
1m=3.2ft=39.2inch   or 
1kg=2.2lbs
.
.
.
.


then just by simple substitution and simplification we can get to the answer.

I have checked all the answers form www.wolframalpha.com/‎      they are correct but i am fishy about the iii) example. There is some mistake in it but the method is same.

 Download in PDF:
http://www.mediafire.com/download/yhsrba2kgek5e2r/Unit_Conversions.pdf

Differential Equation Notes

Differential Equations notes include

1) Separable Differential Equations 

2) Non-separable Differential Equations

3) Exact Differential Equations 

4) Bernoulli Differential Equations 

5) Higher Order non homogeneous Diff. Equations

6) Higher order Homogeneous Diff. Equations

7) Cauchy-Euler Differential Equations

Download LINK:

 http://www.mediafire.com/download/defhx8ai0eghomr/Differential_Equation_Notes.pdf

Unit step and Ramp Function in MATLAB

 Ramp function :

Code:

function ramp(L)

n=-L:L;

x=zeros(1,length(n));

for i=1:L
   
x(L+1+i)=i;

end

stem(n,x)

grid on

Unit step function :

 Code:

function ustep(L)

n=-L:L;

x=zeros(1,length(n));

for i=1:L
   
x(L+i)=1;

end

stem(n,x)

Routh–Hurwitz stability criterion in MATLAB

Copy the rhc.m file to C:\Program Files\MATLAB\R2012a\bin\ 
and then follow the instruction in the image below:

Download Link:
http://www.mediafire.com/?0i9cl6ba956abb1

Tabular Method for Product and Quotient Rule:: A faster approach

We basically have 4 types of function 

1. Algebraic
2. Trigonometric
3. Exponential 
4. Logarithmic

but when they get multiplied with each other , doing derivation and integration become complex and time consuming. This is the fastest method i have ever seen to get first and 2nd derivative of a function.

Just take derivative of both function and cross-multiply, put '+'  between cross-multiplied terms and then simplify.

Product Rule and 2nd Derivative by Tabular Method :

Quotient Rule by Tabular Method

 Example

Complex MCQs from Electrical and Electronics books

Download Link:

http://www.mediafire.com/download/ev3v3zv39szw366/Complex_MCQs_Electrical.pdf

DC Motor , Dc Generator and Alternator notes/Calculations

Download Link:
http://www.mediafire.com/?79o307psogn1jnz

Transmission Lines Sag Calculations

Downlaod Link:

http://www.mediafire.com/?28fj51cxe47vbnj

Transmission Lines Sag Modeling in MatLab + CODE

Program will calculate the Sag and Vertical Sag of a transmission line with given parameters. Program is intelligent enough to  recognize the missing values and find them automatically till sag and V.Sag is calculated.

Download 

Numerical Methods Notes

Numerical Methods Notes:

Caution: 
There might be some errors or mistakes, so be careful 



Download Link:


http://www.mediafire.com/download/5p6tyka79svh9q6/Numerical_Methods_Concept_Solutions.pdf

Solution Manual :: Advance Engineering Mathematics by Erwin Kreysizg 9th Edition

1. Chapter # 11:: Fourier Analysis
2. Chapter #13:: Complex analysis  

Caution: Solutions are for practice. Don't use it for illegal purposes.   


Download Link:

http://www.mediafire.com/download/iei1s18dabu6q8q/Fourier%2C_Laplace_and_complex_variables_practice_Problems.pdf

My GPA Calculator

I made this tool to calculate GPA .

Points Associated with Grades(A+,B- etc) are of my University.

 

Circuit Analysis( Thevenin, Norton & Superposition Theorem) Solved Practice Problems

Solved Practice Problems

• Thevenin Theorem
• Norton Theorem
• Superposition Theorem

Download in PDF:
 http://www.mediafire.com/?pc84jw64bctk1mc