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() { // Create Canvas of given size createCanvas(550, 130); } function draw() { // Set the background color background(220); // Initialize the parameter with // angles in radian only let a = 0; let b = 8.9; let c = 47; let d = 5; // Call to cos() function let v = cos(a); let w = cos(b); let x = cos(c); let y = cos(d); // Set the size of text textSize(16); // Set the text color fill(color('red')); // Getting cosine value 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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