"0" can mean no or yes, such as:
1. The temperature reported by radio and television is 0 degrees, which does not mean that there is no temperature, but it is equivalent to 32 degrees Fahrenheit, which is also the freezing point temperature.
2. "0" can also indicate the starting point. For example, the password when launching a missile is "9, 8, 7, 6, 5, 4, 3, 2, 1 0, launch".
3. "0" is the origin on the number axis, which also means the starting point.
4. "0" can also indicate accuracy. For example, in approximate calculation, 7.5 and 7.50 represent different accuracies.
Extended data
0 is an integer between-1 and 1. Is the smallest natural number and also a rational number. 0 is neither positive nor negative, but the dividing point between positive and negative numbers.
0 has no reciprocal, the reciprocal of 0 is 0, the absolute value of 0 is 0, the square root of 0 is 0, the cube root of 0 is 0, 0 times any number equals 0, and the power of 0 of any number except 0 equals 1. 0 cannot appear as a denominator, and all multiples of 0 are 0. 0 cannot be used as a divisor.
Why can't 0 be a divisor (denominator, last term)
1: If the divisor (denominator, last term) is 0 and the dividend is a non-zero positive number, the quotient does not exist. This is because any number multiplied by 0 will not get a non-zero positive number. However, some fields are defined as infinity (∞), because ∞×0 is considered to get a non-zero positive number.
2. If the divisor (denominator, last term) is 0, so is the dividend, because any number multiplied by 0 will get 0, and there are infinite answers, which cannot be defined.