Why the answer is 10.

Why the answer is 10. Shouldn't it be 11?

format long;

y = (3.8 - 1.6)/0.2;

x = floor(y);

disp(x);

[Arif Hoq]

>> (3.8 - 1.6)/0.2

ans =

  10.999999999999998

Floor rounds each element of a vector/matrix to the nearest integer less than or equal to that element. so the floor value of y would be 10.

If you use "round" function it will show the value 11.

  format long;
y = (3.8 - 1.6)/0.2;
x = round(y);
disp(x);

for more information please type in the command prompt.

  doc round
  doc floor

Answer 1

[KSSV]

If you want 11 use ceil.

y = (3.8 - 1.6)/0.2;
x = ceil(y);
disp(x);

    11

Alos have a look on functions round, fix.

[DGM]

Or perhaps

https://www.mathworks.com/help/matlab/matlab_prog/floating-point-numbers.html#f2-98690