matlab函数编写时候开方怎么表达啊

我用乘方的那个也不行啊!——这是不可能的
.^ Array power.
Z = X.^Y denotes element-by-element powers.X and Y
must have the same dimensions unless one is a scalar.
A scalar can operate into anything.
C = POWER(A,B) is called for the syntax 'A .^ B' when A or B is an
object.