However, only numerical expressions are permitted and no string expressions. However, only numerical expressions are permitted, no string expressions. In contrast to the normal division operator, the returned result is always an integer. If therefore, the division cannot divide exactly, the result is rounded down to the next smaller integer. However, only numerical expressions are permitted, no string expressions.
Calculation occurs through a series expansion.
Therefore, this operation is very slow compared to the basic arithmetic operations. The result is a Boolean value. If the expression on the left side of the operator is less than the expression on the right side of the operator, the returned result amounts to -1, otherwise 0. The strings may also differ in lengths. The 'less than or equal to' operator compares the expression on its left with the expression on its right.