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Question: limit of multivariate function

Question:limit of multivariate function

taro 490 Maple 2016
July 13 2016
0

Hello people in mapleprimes,

 

I have a question. I hope someone give an answer to me.

rho:=sqrt((x-a)^2+(y-b)^2);

limit(x-a+y-2,rho=0);

 

brings an error

Error, invalid input: limit expects its 2nd argument, p, to be of type Or(name = algebraic, set(name = algebraic)), but received ((x-a)^2+(y-b)^2)^(1/2) = 0

Isn't other way than the following?

limit(x-a+y-2,{x=a,y=b});

 

Best wishes.

taro
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