get a normally distributed random number in typescript

In Typescript, you can use the random function from the Math object to generate a random number between 0 and 1. To get a normally distributed random number, you can use the Box-Muller transform algorithm.

Here's an example function that generates a normally distributed random number:

index.ts
function generateRandomNormal(mean: number, stdDev: number): number {
  let u1 = Math.random();
  let u2 = Math.random();
  let z = Math.sqrt(-2 * Math.log(u1)) * Math.cos(2 * Math.PI * u2);
  return mean + stdDev * z;
}
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The function takes in two parameters: the mean and standard deviation of the normal distribution you want to generate. It first generates two uniformly distributed random numbers (u1 and u2). It then applies the Box-Muller transform to these numbers to get a normally distributed number z. Finally, it scales and shifts z by the specified mean and standard deviation and returns the result.

You can use this function to generate normally distributed random numbers in your Typescript programs.

index.ts
// generate 10 normally distributed random numbers with mean 0 and standard deviation 1
for (let i = 0; i < 10; i++) {
  let num = generateRandomNormal(0, 1);
  console.log(num);
}
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