Good evening! Here's our prompt for today.
Given a number x and an integer n, find the value of x raised to the power n ( xn ).
For example, consider the following two numbers,
SNIPPET
1x = 2.1, n = 3If the number 2.1 is multiplied by itself 3 times, then the answer is 9.261 (rounded to the nearest 100), which is 2.1 raised to the power 3.
Constraints
- -100.0 < x < 100.0
- -231 <= n <= 231-1
- -104 <= xn <= 104
Try to solve this here or in Interactive Mode.
How do I practice this challenge?
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var assert = require('assert');​function powN(x, n) { return;}​​try { assert.equal(powN(2, 10), 1024); console.log('PASSED: ' + "`powN(2, 10)` should return `1024`");} catch (err) { console.log(err);}​try { assert.equal(powN(2.1, 3), 9.261000000000001); console.log('PASSED: ' + "`powN(2.1, 3)` should return `9.261000000000001`");} catch (err) { console.log(err);}​try { assert.equal(powN(2, -2), 0.25); console.log('PASSED: ' + "`powN(2, -2)` should return `0.25`");} catch (err) { console.log(err);}​try {OUTPUT
:001 > Cmd/Ctrl-Enter to run, Cmd/Ctrl-/ to comment
Here's how we would solve this problem...
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