Running and Verification

Procedure

Use PuTTY to log in to the server as the root user.

Create a test file, test.py.

Create test.py.
```
vim test.py
```

Press i to enter the insert mode and add the following content to the file:

import theano
from theano import tensor
##declare two symbolic floating-point scalars
a = tensor.dscalar()
b = tensor.dscalar()
##create a simple expression
c = a + b
##convert the expression into a callable object that takes (a,b)
##values as input and computes a value for c
f = theano.function([a,b], c)
##bind 1.5 to 'a', 2.5 to 'b', and evaluate 'c'
assert 4.0 == f(1.5, 2.5)

Press Esc, type :wq!, and press Enter to save the file and exit.

Perform a test.
```
python3 test.py
```
No command output is displayed, indicating that the conclusion "1.5 + 2.5 = 4.0" is true.

Create a test file, test2.py.

Create test2.py.
```
vim test2.py
```

Press i to enter the insert mode and add the following content to the file:

import theano
from theano import tensor
##declare two symbolic floating-point scalars
a = tensor.dscalar()
b = tensor.dscalar()
##create a simple expression
c = a + b
##convert the expression into a callable object that takes (a,b)
##values as input and computes a value for c
f = theano.function([a,b], c)
##bind 1.5 to 'a', 2.5 to 'b', and evaluate 'c'
assert 4.5== f(1.5, 2.5)

Press Esc, type :wq!, and press Enter to save the file and exit.

Perform a test again.
```
python3 test2.py
```
An error is reported, indicating that the conclusion "1.5 + 2.5 = 4.5" is incorrect.

Parent topic: Theano 1.0.5 Porting Guide (Kylin V10)