• 2022-07-26
    求下列标量场的梯度:[tex=8.0x1.429]tsd5g8PunHADYOD5QgQ8mNv1gRrxb5RBZqh7HhmxTFiBsMsWxk8daLIjGxDeaRZI8HX+1teYON87h7dW1jBgpAQ0oyw+dou8hmQ2AT9rtQU=[/tex]