### Can you please help me with this task in sage?

1) Enter the program function sum_quadrate() with matrix A.The function returns the sum of those matrix elements that are complete squares.
The x is complete square if the command is_square (x) returns the True value.

```
[4 1 6 ]
```

matrix A=[1 3 9 ]
[2 7 25]
...

def sum_quadrate (A):
m=A.nrows()
n=A.ncols()
True=0
for i in range (m):
for j in range(n):
if....???
I wrote this but from last row i dont know what goes next

PLEASE HELP