مدرس المادة

Lecture2: 
A first steps: 
To get matlab to work out 1 + 1, type the following at the prompt: 
1+1 
matlab responds with 
ans = 2 
The answer to the typed command is given the name ans. In fact ans is 
now a variable that you can use again. For example you can type 
ans*ans 
to check that 2 × 2=4: 
ans*ans 
ans = 4 
Matlab has updated the value of ans to be 4. 
The spacing of operators in formulas does not matter. The following 
formulas both give the same answer: 
1+3 * 2-1 / 2*4 1+3*2-1/2*4 
The order of operations is made clearer to readers of your matlab code if 
you type carefully: 
1 + 3*2 - (1/2)*4 

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