What is the difference between if and if/and in MATLAB?

Could you please explain if and in MATLAB with an example?

Are these two the same?

if (y1<8)&&(y1>-8)
 p1=0
end
if and(y1<8,y1>-8)
  p1=0
end

Answer 1

[Jan]

Both commands are very similar:

• and() evaluates both arguments and accepts arrays.
• && omits the evaluation of the 2nd argument, if the first is false already. It works on scalar inputs only.

Answer 2

[Fangjun Jiang]

If you type in "help and", it will tell you that and(A,B) is the same as A & B most of the times. From the help, "C = AND(A,B) is called for the syntax 'A & B' when A or B is an object.".

&& is called "Short-circuit logical AND", it applies only to scalar. Try this to understand it.

A=logical([1 0 1]);
B=logical([1 1 0]);
C=A & B;
D=and(A,B)
a=true;
b=false;
c=a && b;
d=A && B