By default a real number is treated as a float double long double far double

In most programming languages, a real number is treated as a float by default. However, the specific default can vary depending on the language. For example, in Python, a real number is treated as a float, while in C++, it could be either a double or a float depending on the context.

Here's a step-by-step breakdown:

1. A real number is a number that can contain a fractional component, not just an integer. For example, 3.14 is a real number.

2. In programming, real numbers are typically represented using floating-point types. The most common of these are float, double, and long double.

3. By default, most programming languages treat real numbers as floats. This means that if you write a number with a decimal point in your code, the language will automatically store it as a float.

4. However, some languages might use other types by default. For example, in C++, a real number might be treated as a double instead of a float.

5. The term "far double" is not standard in most languages. It might be used in some specific contexts or languages, but in general, float, double, and long double are the types used to represent real numbers.

So, to answer your question, by default a real number is usually treated as a float, but it can also be a double or a long double depending on the language and context.