One, the conversion between decimal and binary (1) Decimal conversion to binary, divided into integers and fractional parts ① whole number of parts Methods: In addition to the 2 method, that is, each time the integer part divided by 2, the remainder
One, the conversion between decimal and binary(1) Decimal conversion to binary, divided into integers and fractional parts① whole number of partsMethods: In addition to the 2 method, that is, each time the integer part divided by 2, the remainder is
one or 10 conversion between binary and binary(1) Decimal conversion to binary, divided into integers and fractional parts① Integer PartMethods: In addition to the 2 method, that is, each time the integer part divided by 2, the remainder is the
one or two binary number converted to decimal numberThe basic practice of converting a binary number to a decimal number is to first write the binary number as the weighted coefficient expansion, and then sum it by the decimal addition rule. This
1, Mime_content_type () function to judge get file type
Mime_content_type returns the MIME type of the specified file.
Usage:
The code is as follows
Copy Code
Echomime_content_type (' Php.gif '). " n ";Echomime_content_
Binary, octal, decimal, hexadecimal conversion between decimal and binary conversions (1) Decimal conversion to binary, divided into integral part and fractional part ① Integer part method: Except 2 take the remainder method, that is, each time
Binary, octal, decimal, hexadecimal conversion one, decimal and binary conversions
(1) Decimal conversion to binary, divided into integers and fractional parts
① whole number of parts
Methods: In addition to 2, the reverse arrangement, that is,
Brother even PHP training (www.lampbrother.net) Detailed: Binary, octal, decimal, hexadecimal conversion one, decimal and binary conversions(1) Decimal conversion to binary, divided into integers and fractional parts① whole number of partsMethods:
This paper summarizes and analyzes the PHP mathematical operation function. Share to everyone for your reference, specific as follows:
First, the commonly used function description:
Abs: Get absolute value.
Acos: Gets the inverse cosine value.
Chapter III Information Coding and data representation I. Basic concept of carry count valuecardinality RRefers to the number of basic digits allowed in this rounding system. A system with a base of R is called an R-binary number. The main feature
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