>> % Matlab as a calculator

>> 5 + 7 + 12

ans =

24

>> a = 5 + 7 + 12

a =

24

>> a = 5 + 7 + 12;

>> a

a =

24

>> b = 8 - 4 / 2 + 6

b =

12

>> c = (a - b)^2;

>> c

c =

144

>> % variable_name = expession

>> c = (b - a)^2

c =

144

>> clear

>> b - a

Undefined function or variable 'b'.

>> a = 5; b = 7; c =3;

>> A = 1; B = 6; C =10;

>> D = (b - a)/(B - C)

D =

-0.5000

>> 40 - 3^2 / 6^2 * 2 - 1

ans =

38.5000

>> (40 - 3^2) / 6^2 * 2 - 1

ans =

0.7222

>> (40 - 3^2) / (6^2 * 2 - 1)

ans =

0.4366

>> (40 - 3)^2 / 6^(2 * 2 - 1)

ans =

6.3380

>> format long

>> (40 - 3)^2 / 6^(2 * 2 - 1)

ans =

6.337962962962963

>> format short

>> 22/711*(15/11) - 15

ans =

-14.9578

>> 22/711*15/11 - 15

ans =

-14.9578

>> exp( sin( pi/2 ) )

ans =

2.7183

>> % Use Matlab to evaluate log(s^2-2 s cos(pi/5)+1) where s = 0.5

>> s = 0.5; log(s^2-2*s*cos(pi/5)+1)

ans =

-0.8187

>> s = 0.5; log10(s^2-2*s*cos(pi/5)+1)

ans =

-0.3556

>> s = 0.95; log10(s^2-2*s*cos(pi/5)+1)

ans =

-0.4373

>> s = 1; log10(s^2-2*s*sin(pi/5)+1)

ans =

-0.0838

>>