operators.py 文件源码

def tLowDotOperator(stack, z, mode):
    if mode == 1:   # num
        stack.append(utilities.formatNum(math.atan(z)))
    elif mode == 2 or mode == 3: # str or list
        stack.append(1 if z[::-1]==z else 0)
    else:
        monadNotImplemented(mode, '')

# ?