take the secant of a number in javascript

To get the secant of a number in Javascript, you can use the Math library's secant() function. The secant of a number can be calculated by taking the reciprocal of its cosine value. Here's an example:

index.tsx
function sec(number) {
  return 1 / Math.cos(number);
}

// Example usage:
let secantOfPi = sec(Math.PI);
console.log(secantOfPi); // Output: -1
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In the above code, we define a sec() function that takes a number parameter and returns the secant of that number. We do this using the formula: sec(x) = 1 / cos(x). We then use this function to calculate the secant of Pi, which should output -1.

Note that the Math.cos() function takes its input in radians, so you may need to convert your input to radians first if it's in degrees or another unit.