I want to use dot operator in matlab to perform element by element multiplication of a matrix. How can I do it?
for example: I have two 2x3 matrices [1 2 3; 1 1 2], [1 1 2; 4 1 1]. My output after multiply 2 matrices should look like:
1 2 6
4 1 2 
I have a few matrices and arrays such as
Arrays : A = [1 3 5 ], B = [2 5 6], C = [ 1 5]
Matrices D = [ 1 3; 2 5], E = [ 1 3; 2 5; 1 4],
H = [ 1 3 4; 2 5 5; 1 4 6], I = [ 5 3 4; 2 1 5],
Please let me know which matrices or array can I multiply, invert, add? 
A = 5 2 B = 6 3
3 4 8 10
ans=A+B = 11 5
11 14 
Example
A = 1 2 B = 2 3
3 4 4 5
ans=A*B = 10 13
22 29 
I am new to Matlab and I want to define variables, array, strings in Matlab so that I can play with them,
Please let me know how can I do it?
Thanks 
I have a set of following linear equations:
10x + 2y  z = 27
3x  6y + 2z = 61.5
x + y +5z = 21.5
I want to use the lu function to perform LU factorization on A such that LU=A.
how can I use L and U matrices to find the inverse of A.

I am new to Matlab,but I already know C. I dont know how can I use my knowledge of C in Matlab?
I mean How is Matlab different from C?
Do i need to define variables type and so on? 
How to multiply 2 matrices? 
create a sample program to show the use of 2D Arrays in java. 
I have two martices A=[1 2 3;4 5 6;7 8 9] and B = [1 1 1; 1 1 1;1 1 1].
I want to concatenate them horizontally and vertically. the horizontal output should be like this:
1 2 3 1 1 1
4 5 6 1 1 1
7 8 9 1 1 1
Vertical output should look like this:
1 2 3
4 5 6
7 8 9
1 1 1
1 1 1
1 1 1 
I have to code jacobi in matlab to solve the following equation rn9a  2b + 3c +24d = 54.5rn2a + 8b 2c + 3d = 14rn3a + 2b +11c  4d = 12.5rn2a + 3b +2c +10 d = 21rnwith a 0.001 tolerance and an estimated max error which is e = abs(xnsxn)/(xn)rni've attached what i have so far any help please. 
How to create a plotting matlab script, which does the following screen
Fulscreen
Increase font size
Convert into pdf and save it to a file
Plots on both sides of vertical axis.

I have a function y that I want to calculate using matlab
y = e^(x+1) if x<1
y = 2+cos(x) if 1<=x<5
y = 10(x5) +1 if x>=5
I want to plot the value of y as a function of x 
I have an ordinary differential equation dy/dx = 2xy, with initial condition on y (x = 0) = 2, when x = 0
I want to numerically solver this ODE using 4th order RunkeKutta Method in Matlab with a step size of 0.1. 
How can I solve a linear programming problem (LP) in Matlab?
Linear programming (LP) has linear objective function and linear constraints.
eg.
minimize: x+y
subject to:
x>1
yx>5
y+x>3
Thanks. 
How can I connect to a database in Matlab.
I have a local database \'postgres\', username \'postgres\'.
password \'123456\' port \'5432\'
How would I know if I am being connected to the database?
Thanks 
I have the following optimization problem:
min x^2+y^2
subject to:
x2y>1
x>0
How can I set it up in Matlab to obtain the solution? 
I have an excel file, which has two columns
name value
John 2
Smith 3
I want to import both of the variables in a matlab variables. how can i do it?
Thanks, 