Web在數學中,一數 b {\\displaystyle b} 為數 a {\\displaystyle a} 的 n {\\displaystyle n} 次方根,則 b n = a {\\displaystyle b^{n}=a} 。在提及實數 a {\\displaystyle a} 的 n {\\displaystyle n} 次方根的時候,若指的是此數的主 n {\\displaystyle n} 次方根,則可以用根號( t {\\displaystyle {\\sqrt {\\color {white}t}}} )表示成 a n {\\displaystyle ...
Web方根. root uk / ruːt/ us / ruːt/ noun specialized. A root of a particular number is another number that, when multiplied by itself one or more times, reaches that number.: The square root of 64 is 8, and the cube root of 64 is 4. 64的平方根是8,立方根是4。.