Python错误索引超出范围

Question

我的代码编写如下，但由于索引越界，无法运行它，有人可以告诉我哪里做错了吗？

def potential(a,b,c,d):
    energylist = []
    for x in np.arange(-5,10,0.1):
        for y in np.arange(-5,10,0.1):
            expa = np.exp(-(x-a)**2)
            expb = np.exp(-(y-b)**2)
            expc = np.exp(-(x-c)**2)
            expd = np.exp(-(y-d)**2)
            if x-y != 0:
                integ = expa*expb*(1/np.abs(x-y))*expc*expd
                energylist.append(integ)
    val = sum(energylist)
    return val

def htable(*myions):
    k = len(myions)
    matrix = np.zeros((k^2,k^2),float)
    for i in np.arange(0,k^2-1,1):
        for j in np.arange(0,k^2-1,1):
            m = myions[i/k]
            n = myions[i%k]
            o = myions[i/k]
            p = myions[i%k]
            matrix[i,j] = potential(m,n,o,p)
    print matrix
    return matrix

htable(1,3)

Answer 1

^不是指数运算符，而是二进制异或运算符;将^替换为**以获取取幂。 2 ^ 2 == 0，这会导致您的matrix有0到0个元素。