Baseline Widely available
Math.sqrt()
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function calcHypotenuse(a, b) {
return Math.sqrt(a * a + b * b);
}
console.log(calcHypotenuse(3, 4));
// Expected output: 5
console.log(calcHypotenuse(5, 12));
// Expected output: 13
console.log(calcHypotenuse(0, 0));
// Expected output: 0
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x
0 以ä¸ã®æ°å¤ã§ãã
x
ã®å¹³æ¹æ ¹ã§ãã x < 0
ã®å ´åã NaN
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sqrt()
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ãªãã¸ã§ã¯ãã®ã¡ã½ããã¨ãã¦ã§ã¯ãªãã常㫠Math.sqrt()
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Math.sqrt(-1); // NaN
Math.sqrt(-0); // -0
Math.sqrt(0); // 0
Math.sqrt(1); // 1
Math.sqrt(2); // 1.414213562373095
Math.sqrt(9); // 3
Math.sqrt(Infinity); // Infinity
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