p5.js cos() function
Last Updated :
23 Aug, 2023
The cos() function in p5.js is used to calculate the cosine value of an angle (taken in radian) as input parameter of the function and returns the result between -1 to 1.
Syntax:
cos(angle)
Parameters: This function accepts a single parameter angle which is an angle in radian whose cosine value to be calculated.
Return Value: It returns the cosine value of an angle in radian taken as the input parameter.
Below program illustrates the cos() function in p5.js:
Example: This example uses cos() function to get cosine value of an angle in radian.
function setup() {
createCanvas(550, 130);
}
function draw() {
background(220);
let a = 0;
let b = 8.9;
let c = 47;
let d = 5;
let v = cos(a);
let w = cos(b);
let x = cos(c);
let y = cos(d);
textSize(16);
fill(color( 'red' ));
text( "Cosine value of angle 0 (in radian) is : " + v, 50, 30);
text( "Cosine value of angle 8.9 (in radian) is : " + w, 50, 50);
text( "Cosine value of angle 47 (in radian) is : " + x, 50, 70);
text( "Cosine value of angle 5 (in radian) is : " + y, 50, 90);
}
|
Output:
Note: In the above code, the input angle should be in radian. For converting degree angle into radian we can use the following formula:
Angles_in_radian = (π/180)*angles_in_degree
Reference: https://p5js.org/reference/#/p5/cos
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