Thus: Tests for equality among floating-point numbers should not be used. Ideally, you should use a type that comfortably copes with all possible values of the data it will store. An example is, A precisely specified floating-point representation at the bit-string level, so that all compliant computers interpret bit patterns the same way. Otherwise, value is equal to false . C# supports the following predefined floating-point types: In the preceding table, each C# type keyword from the leftmost column is an alias for the corresponding .NET type. Applies to all floating-point types (float, double and long double). Float (single-precision floating-point numbers) Double (double-precision floating-point numbers) In choosing the data type, first consider the need for whole numbers versus fractional numbers. Floating-point numbers are numbers that have fractional parts (usually expressed with a decimal point). Conversions to integer are not intuitive: converting (63.0/9.0) to integer yields 7, but converting (0.63/0.09) may yield 6. >>> a=1.1111111111111111119 >>> a. This, and the bit sequence, allows floating-point numbers to be compared and sorted correctly even when interpreting them as integers. The expression is classified as a locally static if it is possible to determine its value without running the code. On all currently supported platforms, these types are implementations of IEEE Standard 754 for Binary Floating-Point Arithmetic (single and double precision, respectively), to the extent that the underlying processor, operating system, and compiler support it. A number representation specifies some way of encoding a number, usually as a string of digits. If you just need to store whole numbers, such as 12 or 12,345,678, specify a short or long integer. continued fractions such as R(z) := 7 − 3/[z − 2 − 1/(z − 7 + 10/[z − 2 − 2/(z − 3)])] will give the correct answer in all inputs under IEEE 754 arithmetic as the potential divide by zero in e.g. TEXT. You can use the digit separator with all kinds of numeric literals. To recap, in this lecture, we learned that C provides a number of different data types for representing floating point numbers. Built-in types are divided into three main categories: integral, floating-point, and void. 3.141592653589793 >>> type(pi)

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