Application for a gretl login

login (31 characters max)

email address

password (5 to 15 characters)

confirm password

Now -- sorry, folks, but we're just trying to exclude pranksters! -- please complete your application by selecting from the dropdown lists the answers to each of the following questions.

1.   equation 1

The equation above exhibits:

 

2.   equation 2

The equation above exhibits:

 

3.   equation 3

The equation above exhibits:

4.   Gretl's ols command requires: