find the base e logarithm of a number in typescript

To find the base e logarithm (natural logarithm) of a number in Typescript, you can use the Math.log() function.

Here's an example code block that calculates the natural logarithm of 10:

index.ts
const num: number = 10;
const naturalLog: number = Math.log(num);
console.log(naturalLog); // Output: 2.302585092994046
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In the Math.log() function, the input parameter is the number you want to find the natural logarithm of. The output is the natural logarithm of the input parameter.

Note that Math.log() returns the natural logarithm of the input parameter, which has a base of e (Euler's number). If you want to find the logarithm of a number to a different base (such as base 2 or base 10), you can use the formula:

index.ts
log_b(x) = log_e(x) / log_e(b)
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Where x is the number you want to find the logarithm of, and b is the base you want to use.