Less.js is a simple CSS pre-processor that facilitates the creation of manageable, customizable, and reusable style sheets for websites. Because CSS is a dynamic style sheet language, it was chosen. Because LESS is adaptable, it works with a wide range of browsers. Only CSS that has been written in and processed using the CSS pre-processor, a programming language, can be used by web browsers. In addition to providing capabilities like variables, functions, mixins, and operations to help create dynamic CSS while maintaining backward compatibility, it is a CSS language extension.
In this article, we are going to discuss the Math acos() function, which is used to do the arc cosine function on a given value. Basically, it is used to find the inverse cos value of a value. This function takes a floating number or deg value or rad value as a parameter and performs an operation on that value and returns a number
Syntax:
acos(value)
Parameters:
- value: This is the only compulsory parameter for this function. This parameter takes a floating number.
Return type: This method returns a floating number.
Example 1: The code below demonstrates the usage and implementation of the Misc acos() function.
<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" type="text/css"
href="style.css"/>
</head>
<body>
<h1 style="color:green">GeeksforGeeks</h1>
<h3><b>Less.js Math acos() Function</b></h3>
<div class="c1">
<p class="p1">
<strong>
acos(0.695)
<br> 0.80237643rad
</strong>
</p>
</div>
</body>
</html>
styles.less:
@body-bg-color: #eeeeee;
@dark: hsl(25, 71%, 8%);
@light: rgb(253, 255, 146);
@val: acos(0.695);
body {
background-color: @body-bg-color;
}
.c1 {
width: 500px * @val;
height: 250px * @val;
margin: 1rem;
background-color: @dark;
}
.p1 {
padding: 80px 0px 0px 120px;
color: @light;
}
Now, to compile the above LESS code to CSS code, run the following command:
lessc style.less style.css
style.css: The CSS output of the above Less file was compiled.
body {
background-color: #eeeeee;
}
.c1 {
width: 401.188213px;
height: 200.5941065px;
margin: 0.80237643rem;
background-color: hsl(25, 71%, 8%);
}
.p1 {
padding: 80px 0px 0px 120px;
color: #fdff92;
}
Output:
Example 2: The code below demonstrates the usage and implementation of the Misc acos() function along with isnumber type function if() and boolean logical functions.
<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" type="text/css"
href="style.css"/>
</head>
<body>
<h1 style="color:green">GeeksforGeeks</h1>
<h3><b>Less.js Math acos() Function</b></h3>
<div class="c1">
<p class="p1">
<strong>
boolean(isnumber(acos(0.52)))
<br> TRUE
</strong>
</p>
</div>
</body>
</html>
style.less:
@body-bg-color: #eeeeee;
@dark: hsl(25, 71%, 8%);
@light: rgb(253, 255, 146);
@val: acos(0.52);
@cond: boolean(isnumber(@val));
body {
background-color: @body-bg-color;
}
.c1 {
width: 500px * @val;
height: 250px * @val;
margin: 1rem;
background-color: if(@cond, @light, @dark);
}
.p1 {
padding: 80px 0px 0px 100px;
color: if(@cond, @dark, @light);
}
Now, to compile the above LESS code to CSS code, run the following command:
lessc style.less style.css
style.css: The CSS output of the above Less file was compiled.
body {
background-color: #eeeeee;
}
.c1 {
width: 511.97268805px;
height: 255.98634402px;
margin: 1rem;
background-color: #fdff92;
}
.p1 {
padding: 80px 0px 0px 100px;
color: hsl(25, 71%, 8%);
}
