We can take it to be zero.
可以令它等于零.
So,we set this to be zero.
因此,我们令它等于零.
We are setting y equals constant.
我们令y等于常数.
What if I plug t equals 0 in here?
如果我令t等于0会怎样?
令y等于0,而且dy也等于.
I will set y equal to zero also dy equal to zero.
set w equal to some constantc
令w等于某个常数.
so if we set u equals x over a
因此如果我们令u等于x/a
因此,我总结了一下:
令.等于零
set/take.to be zero.
set/take.equal to zero.
set/take.equal zero.
set/take.equal to be zero.
2.