when I  have transformed symbol expression  from matlab 2017b to  maple 2018 , maple took a mistake that  "maple kernel connection not available", What  is the  reason？Can anyone help me？Thank you！

I have a question as this：

Examples as following：(come from MAPLE‘s help ) 
with(LinearAlgebra);
Ax := <1.00004, 1.99987, -0.12e-3>;
b := <1., 2., 0.>;
Add(Ax, b, 1, -1);

result is this：[0.400000000000400e-4, -0.129999999999963e-3, -0.120000000000000e-3]'

I think result is :[0.400000000000400e-4, -0.13e-3, -0.120000000000000e-3]' 

Is this a bug of MAPLE?