>> % 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
>>