b to a and
c using logical operators, e.g. <,
>=, ==, etc.
Instead, MATLAB evaluates operators of equal precedence from left to right.
This means that the statement, a < b < c, is equivalent
to the statement (a < b) < c, comparing the logical
result of a < b (either 0 or
1) to the value c. Statements using
this type of interval testing rarely yield useful results.
Break the comparison, a < b < c, into a series of
binary comparisons. If all arguments are numeric scalars, use the
form:(a < b) && (b < c)Otherwise,
use the form:(a < b) & (b < c)
For more information, see Operator Precedence.