Both a) & b) are different .
In (a) “y” and “x” are devided first and then multiply by “z” ;
In (b) “x” and “z” multiplied first and then devide “y” by ans ;
x = 4 ;
y = 12 ;
z = -2 ;
sqrt(x) ans = 2
sqrt(y) ans = 3.4641
sqrt(z) ans = 0 + 1.4142i
format long
sqrt(x) ans = 2
sqrt(y) ans = 3.464101615137754
sqrt(z) ans = + 1.414213562373095i
format short e
sqrt(x) ans = 2
sqrt(y) ans = 3.4641e+00
sqrt(z) ans = 0 + 1.4142e+00i
x = 4 ;
y = 12 ;
z = -2 ;
sin(pi/3) ans = 8.6603e-01
cos(pi/4) ans = 7.0711e-01
tan(pi/2) ans = 1.6331e+16
asin(0) ans = 0
log(x) ans =1.3863e+00
exp(y) ans = 1.6275e+05
abs(z) ans = 2
Result
Tan (pi/2) is not equal to infinity in matlab .
Method_01
a = [1,2,3,4,5,6]
a = 1 2 3 4 5 6
Method_02
a = [1:6]
a =1 2 3 4 5 6
A = [ 1 1 1 1 ; 2 -1 0 1 ; 0 0 0 1 ; -1 1 1 0 ]
A =
1 1 1 1
2 -1 0 1
0 0 0 1
-1 1 1 0
A = [ 1 1 1 1 ; 2 -1 0 1 ; 0 0 0 1 ; -1 1 1 0 ];
A'
ans =
1 2 0 -1
1 -1 0 1
1 0 0 1
1 1 1 0
A = [ 1 1 1 1 ; 2 -1 0 1 ; 0 0 0 1 ; -1 1 1 0 ]
A =
1 1 1 1
2 -1 0 1
0 0 0 1
-1 1 1 0
linspace(-pi/2,pi/2,15)
ans =
Columns 1 through 6
-1.5708 -1.3464 -1.1220 -0.8976 -0.6732 -0.4488
Columns 7 through 12
-0.2244 0 0.2244 0.4488 0.6732 0.8976
Columns 13 through 15
1.1220 1.3464 1.5708
