C programming float Chapter | Hari Karki | 2018
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Programming is not only developing software and application. It is a way of logical thinking.
Dividing Two number using c programming
C programming float Chapter | Hari Karki | 2018
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C is a powerful general-purpose programming language. It is fast, portable and available in all platforms.
Float is a term is used in various programming languages to define a variable with a fractional value. Numbers created using a float variable declaration will have digits on both sides of a decimal point. This is in contrast to the integer data type, which houses an integer or whole number.
C is a powerful general-purpose programming language. It is fast, portable and available in all platforms.
This is a comprehensive guide on how to get started in C programming language, why you should learn it and how you can learn it.
Before getting started with C programming, lets get familiarized with the language first.
C is a general-purpose programming language used for wide range of applications from Operating systems like Windows and iOS to software that is used for creating 3D movies.
C programming is highly efficient. That’s the main reason why it’s very popular despite being more than 40 years old.
Standard C programs are portable. The source code written in one system works in another operating system without any change.
As mentioned, it’s a good language to start learning programming. If you know C programming, you will not just understand how your program works, but will also be able to create a mental picture on how a computer works.History of C programming
C is closely associated with Unix Operating system
C has a rich variety of math operators that you can use to manipulate your data. In this chapter from Programming in C, 4th Edition, Stephen G. Kochan covers the int, float, double, char, and _Bool data types, modifying data types with short, long, and long long, the rules for naming variables, basic math operators and arithmetic expressions, and type casting.
Storage Sizes and Ranges
Every value, whether it’s a character, integer, or floating-point number, has a range of values associated with it. This range has to do with the amount of storage that is allocated to store a particular type of data. In general, that amount is not defined in the language. It typically depends on the computer you’re running, and is, therefore, called implementation- or machine-dependent. For example, an integer might take up 32 bits on your computer, or perhaps it might be stored in 64. You should never write programs that make any assumptions about the size of your data types. You are, however, guaranteed that a minimum amount of storage will be set aside for each basic data type. For example, it’s guaranteed that an integer value will be stored in a minimum of 32 bits of storage, which is the size of a “word” on many computers.
The Floating Number Type float
A variable declared to be of type float can be used for storing values containing decimal places. A floating-point constant is distinguished by the presence of a decimal point. You can omit digits before the decimal point or digits after the decimal point, but obviously you can’t omit both. The values 3., 125.8, and −.0001 are all valid examples of floating-point constants. To display a floating-point value at the terminal, the printf conversion characters %f are used.
Floating-point constants can also be expressed in scientific notation. The value 1.7e4 is a floating-point value expressed in this notation and represents the value 1.7 × 104. The value before the letter e is known as the mantissa, whereas the value that follows is called the exponent. This exponent, which can be preceded by an optional plus or minus sign, represents the power of 10 by which the mantissa is to be multiplied. So, in the constant 2.25e−3, the 2.25 is the value of the mantissa and −3 is the value of the exponent.To display a value in scientific notation, the format characters %e should be specified in the printf() format string. The printf() format characters %g can be used to let printf() decide whether to display the floating-point value in normal floating-point notation or in scientific notation.
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