26-Sep-2012


1> pwd
ans = C:\cygwin\home\achilles


2> 3*4
ans =  12


3> ans*4
ans =  48


4> 3 + 4
ans =  7


5> 3 - 4
ans = -1


6> 3/4
ans =  0.75000


7> 3 4
parse error:

  syntax error

>>> 3 4
      ^



7> 2^10
ans =  1024


8> 9^(1/2)
ans =  3


9> 8^(1/3)
ans =  2


10> (-1)^(1/3)
ans =  0.50000 + 0.86603i


11> sqrt(3)/2
ans =  0.86603


12> x
error: `x' undefined near line 12 column 1


12> achilles
error: `achilles' undefined near line 12 column 1


12> 'achilles'
ans = achilles


13> % in MATLAB tutto e' matrice = tabella


13> a = [1 2; 3 4]
a =

   1   2
   3   4



14> nome = 'achilles'
nome = achilles


15> size(a)
ans =

   2   2



16> size(nome)
ans =

   1   8



17> nome
nome = achilles


18> cognome
error: `cognome' undefined near line 18 column 1


18> image(a)


19> imagesc(a)


20> x = [0 pi/6 pi/4 pi/3 pi/2]
x =

   0.00000   0.52360   0.78540   1.04720   1.57080



21> y = sin(x)
y =

   0.00000   0.50000   0.70711   0.86603   1.00000



22> sin(a)
ans =

   0.84147   0.90930
   0.14112  -0.75680



23> plot(x,y)


24> x = linspace(0,2*pi)
x =

 Columns 1 through 7:

   0.00000   0.06347   0.12693   0.19040   0.25387   0.31733   0.38080

 Columns 8 through 14:

   0.44427   0.50773   0.57120   0.63467   0.69813   0.76160   0.82506

 Columns 15 through 21:

   0.88853   0.95200   1.01546   1.07893   1.14240   1.20586   1.26933

 Columns 22 through 28:

   1.33280   1.39626   1.45973   1.52320   1.58666   1.65013   1.71360

 Columns 29 through 35:

   1.77706   1.84053   1.90400   1.96746   2.03093   2.09440   2.15786

 Columns 36 through 42:

   2.22133   2.28479   2.34826   2.41173   2.47519   2.53866   2.60213

 Columns 43 through 49:

   2.66559   2.72906   2.79253   2.85599   2.91946   2.98293   3.04639

 Columns 50 through 56:

   3.10986   3.17333   3.23679   3.30026   3.36373   3.42719   3.49066

 Columns 57 through 63:

   3.55413   3.61759   3.68106   3.74452   3.80799   3.87146   3.93492

 Columns 64 through 70:

   3.99839   4.06186   4.12532   4.18879   4.25226   4.31572   4.37919

 Columns 71 through 77:

   4.44266   4.50612   4.56959   4.63306   4.69652   4.75999   4.82346

 Columns 78 through 84:

   4.88692   4.95039   5.01385   5.07732   5.14079   5.20425   5.26772

 Columns 85 through 91:

   5.33119   5.39465   5.45812   5.52159   5.58505   5.64852   5.71199

 Columns 92 through 98:

   5.77545   5.83892   5.90239   5.96585   6.02932   6.09279   6.15625

 Columns 99 and 100:

   6.21972   6.28319



25> y = sin(x);


26> plot(x,y)


27> axis equal


28> grid


29> plot(x,y)


30> print('seno.pdf')


31> quit