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// Rounding off in JavaScript

console.log(Math.floor(0.7)) // 0

console.log(Math.ceil(1.3)) // 2

console.log(Math.round(2.3)) // 2

console.log(Math.round(2.7)) // 3

// Trigonometric Function in JavaScript

console.log(Math.PI); // 3.141592653589793

console.log(Math.PI / 180) // 0.017453292519943295

console.log(Math.sin(Math.PI / 180)) // 0.01745240643728351

console.log(Math.cos(Math.PI / 180)) // 0.9998476951563913

console.log(Math.sin(Math.PI * 0 / 180)) // 0

console.log(Math.sin(Math.PI * 30 / 180)) // 0.49999999999999994

console.log(Math.sin(Math.PI * 45 / 180)) // 0.7071067811865475

console.log(Math.sin(Math.PI * 60 / 180)) // 0.8660254037844386

console.log(Math.sin(Math.PI * 90 / 180)) // 1

console.log(Math.sin(Math.PI * 180 / 180)) // 1.2246467991473532e-16 ≒ 0

console.log(Math.sin(Math.PI * 270 / 180)) // -1

console.log(Math.sin(Math.PI * 360 / 180)) // -2.4492935982947064e-16 ≒ 0

console.log(Math.cos(Math.PI * 0 / 180)) // 1

console.log(Math.cos(Math.PI * 30 / 180)) // 0.8660254037844387

console.log(Math.cos(Math.PI * 45 / 180)) // 0.7071067811865476

console.log(Math.cos(Math.PI * 60 / 180)) // 0.5000000000000001

console.log(Math.cos(Math.PI * 90 / 180)) // 6.123233995736766e-17 ≒ 0

console.log(Math.cos(Math.PI * 180 / 180)) // -1

console.log(Math.cos(Math.PI * 270 / 180)) // -1.8369701987210297e-16 ≒ 0

console.log(Math.cos(Math.PI * 360 / 180)) // 1