Hi, @Ohraincu
I am confused about the meaning of self.subtraction2 and self.subtraction, when you use self.subtraction2(x1, x2), I guess x1-x2.
When you use self.subtraction(p), I can't understand what's the meaning of this operation. Can you tell me why?
您好，我想问一下self.subtraction2是不是就是字面意思，那么self.subtraction参数只有一个，那么这个相减的对象是谁呢，不是很明白这块的含义
Hi, @Ohraincu
I am confused about the meaning of self.subtraction2 and self.subtraction, when you use self.subtraction2(x1, x2), I guess x1-x2.
When you use self.subtraction(p), I can't understand what's the meaning of this operation. Can you tell me why?