Question 1: What is numerical data? Numerical data is a data type that represents quantity and can be used for numerical operation. The numerical data consists of numbers, decimal points, symbols and the letter E representing power, and the numerical accuracy reaches 16 bits. In VF system, numerical data can be divided into four different types according to the different storage mode, representation mode and value range.

(1) numerical data consists of buildings, decimal points, positive and negative symbols and the letter e, the letter e is represented by the letter n, and the value range of numerical data is:-0.99999999999e+19++09+to 0.999999999 E+20, including symbols, decimal points and the letter e. Usually used to represent real numbers.

(2) Floating-point data is a kind of numerical data, which is represented by the letter F ... completely equivalent to numerical data, but floating-point format is adopted in the storage form, mainly to obtain higher calculation accuracy.

(3) Double-precision data is a kind of data with high precision, which is represented by the letter B. It is stored in fixed long charge floating-point format, occupying 8 bytes.

(4) Integer data is numerical data that does not contain decimal parts, and is represented by the letter I ... Integer data is only used to represent integers, and is stored in binary form, occupying 4 bytes.

Question 2: vb: What is numerical data? A: Hehe, just use integers, use floating-point type with decimal points, use decimal numbers when precise numbers are needed, use strings for strings, and use bytes for bytes. Imagine if you use a 100 page notebook to record 10 words. Is it a waste? One purpose of data type is to determine the number of bytes occupied by each variable and use it as little as possible (completely unnecessary). ...

Question 3: What is digital data? Digital data generally refers to a series of data types that directly store data in the corresponding memory block, which are divided into floating-point type and integer type. Among them, floating-point type is mainly used to record floating-point numbers (that is, decimals or non-integers, but not imaginary numbers). This type generally has certain errors, and the recording methods are complex and diverse, which should be discussed according to the specific language and data type. Integer is to convert a specific integer value into binary form and record it in memory. This series of types of data is accurate and can usually be divided into int, Long, Byte, Short and other types. There is also a special unsigned integer, which can only record non-negative numbers, but the recordable range of its positive number region is generally twice that of the corresponding signed integer (that is, the above-mentioned int and so on). The general form is U+ corresponding to signed integer type or Unsigned+[space]+ corresponding to signed integer type, such as UInt, ULong or Unsigned Int, Unsigned Long, etc.

Question 4: What are the numerical data? In java, data types are divided into two categories: 1 is the basic type, and 2 is the reference type. Basic data types (logical boolean, char, integer (byte, short, int, long), float(d-touch, float)) are self-defined reference types (usually used when there are many data). Numeric types refer to integer and floating-point types.

Question: What are the character data and numerical data in excel? This is a concept in programming language, not excel. Excel's corresponding programming language is vba.

Question 6: What is the constant representation of numerical data? Numeric constants indicate the size of a quantity. It consists of numbers 0~9, decimal points and symbols, occupying 8 bytes of memory, and can be used for scientific counting.

Question 7: What is the digital type of the database? Char is character type, accounting for one byte, unsigned range: 0 ~ 255;

Int is an integer variable, occupying 2 bytes, with an unsigned range of 0 ~ 65535.

Long is a long integer variable, accounting for 4 bytes, with values ranging from 0 to 4294967295.

Floating-point real type occupies 4 bytes, 0 ~ 4294967295.

Dou Fule's double real number type accounts for 8 bytes.

When you want to use any variable, be sure not to go out of range and use the wrong variable type.

Question 8: What are SQL character type and numeric type? 10 minute SQL has three basic data types: numeric type, string type and date-time type.

Numerical types are divided into integer type, floating point type and decimal type, which are suitable for storing different kinds and ranges of numbers;

String types can be divided into fixed-length strings and variable-length strings. Fixed-length strings are suitable for storing information with fixed digits, such as ID number, and variable-length strings are suitable for storing information with variable length, such as school name and publishing house name.

Date and time types can be divided into single date, single time and mixed date and time.

Each table in the database contains multiple columns, and each column needs the same data type and information of the same nature.

Question 9: Is the data type numeric? There is nothing wrong with your custom data type, but there is something wrong with referencing this custom data. First declare a variable whose data type is your custom data type, and then quote: private type redox in ximingzi as string nianling as integer ti zhong as integer end type private sub-c.

Question10: Which basic data types in Java belong to numeric int?