Css 简明教程

CSS - Math Functions

数学表达式可用于 CSS 中来使用 math functions. 表示数字值

Mathematical expressions can be used in CSS to represent numeric values using math functions.

  1. One significant feature of CSS is its math function, which allows front-end developers to do basic arithmetic operations and mathematical computations directly within their CSS stylesheets.

  2. CSS math functions make it easier to define a property’s value mathematically. For example, they may be used to change an element’s colors, paddings, margins or font-size etc.

  3. The use of JavaScript is not required while creating responsive user interfaces since there are CSS math functions.

  4. CSS math functions are occasionally used in place of CSS media queries to define layout breakpoints.

Basic Arithmetic Functions

CSS 算术函数允许样式表通过执行加、减、乘和除等数学运算来动态修改属性值。

CSS arithmetic functions allow stylesheets to dynamically modify property values by carrying out mathematical operations like addition, subtraction, multiplication, and division.

下表列出了算术函数：

Following table lists arithmetic functions:

Function

Description

calc()

Performs basic arithmetic calculations on numerical values.

Comparision Functions

CSS 比较函数使评估值变得更容易，它允许基于样式表中的比较执行条件样式。

The assessment of values is made easier by CSS comparison functions, which allows conditional styling based on comparisons within stylesheets.

下表列出了比较函数：

Following table lists comparison functions:

Function

Description

min()

Determines the minimum value from a given set of values.

max()

Determines the maximum value from a given list of values.

clamp()

Calculates the central of a minimum, central, and maximum values.

Advanced CSS Math Functions

借助 CSS 高级 math functions ，设计师可以直接在样式表中执行复杂计算，就像使用专用工具一样。

With CSS advanced math functions, designers may do complex calculations directly within their style sheets, much like with specialized tools.

  1. Designers have greater power and flexibility while building websites because to their ability to calculate and modify elements like sizes, colors, and placements in a more accurate and creative way.

  2. Additionally for more complicated requirements like developing 3D models, developing dynamic CSS animations, or developing math teaching resources.

Stepped Value Functions

阶跃值函数通过启用样式表中属性值的精确更改和离散跳转，在样式表中提供精细的控制。

Stepped value functions provide granular control in stylesheets by enabling exact changes and discrete jumps in property values in CSS.

下表列出了阶跃值函数：

Following table lists stepped value functions:

Function

Description

round()

Calculates a rounded number based on a rounding strategy.

Trignometric Functions

CSS 三角函数通过将正弦、余弦和正切等数学函数引入样式表来实现更复杂的设计更改。

CSS trigonometric functions allow for more complex design alterations by introducing mathematical functions like sine, cosine, and tangent into stylesheets.

下表列出了三角函数：

Following table lists trignometric functions:

Function

Description

sin()

Calculates the trigonometric sine of a number.

cos()

Calculates the trigonometric cosine of a number

tan()

Calculates the trigonometric tangent of a number.

asin()

Calculates the trigonometric inverse sine of a number.

acos()

Calculates the trigonometric inverse cosine of a number.

atan()

Calculates the trigonometric inverse tangent of a number.

atan2()

Calculates the trigonometric inverse tangent of two-numbers in a plane.