Question

[(n+1)²]

Answer 1

问：[(n+1)²]

答：这个式子中，n代表一个数，[ ]代表向下取整，加号和乘号的优先级相同，先算括号内的n+1，再将其平方，最后向下取整。例如，当n=2时，[(n+1)2] = [(2+1)2] = [3*3] = [9] = 9。再比如，当n=3.5时，[(n+1)2] = [(3.5+1)2] = [4.5*4.5] = [20.25] = 20。