1- List - vector  (Array operations) .*  ./  .^
2- Scientific notation   1.63e4= 16300    2.78e-3 = 0.00278   -5.17e3  -5.17*10^3
3- Subscripting and operations on vectors
A = [2 4 6; 7 9 10]     A(2)   A(:,3)   A(1,:)  
Assignment 2   Q3

4- Mathematical Functions and graphing (plotting)
*Sine  Cosine
radian-   X=-pi:pi/20:pi;   f1= cos(x),  f2 = sin(x)
          plot(x,f1,x,f2);
degree-   X= 0:10:360;      cos(x*pi/180)

*Standard Normal distribution
x = -2.5:0.1:2.5;    f = (1/sqrt(2*pi))*exp(-0.5*x.^2);
plot(x,f) , grid, xlabel , ylabel, title

5- Output using disp , fprintf
   disp(n);
   disp([n m])     disp([n' m'])
   disp(['The answer is', num2str(n)])

   fprintf("The answer is %d %4.2f %c %s", num, amount, character1, string1) )

6- For loop and vectorization
7- if-else   ,  switch-case     (Quadratic eqn., display the max/min of two numbers)
8- Structure plan  
     if  x greater than zero, set x to 2y+10z / 15
     if (x<0)
        x = (2*y+10*z)/2);

9- Functions   Q6,7 Final exam revision
   vector functions:  sum max min length sort cumsum  mean var std  
   Mathematical functions: sin cos exp sqrt   rand  rem 
   round functions:  round fix floor ceil