TI connect gives error "the name for this variable is not valid" on file transfer

Question

I've written some code for my TI-84+ calculator using an online tool called cemetech, but I receive the above error when trying to transfer the code to my calculator via USB and the TI-Connect software.

I've done some research and apparently this problem can arise when there's a problem with the code, but I don't know enough about TI Basic to know if I've done something wrong or not. This is what I'm trying to transfer:

Prompt x
Prompt y
Prompt w
(x-y)/w->z
Disp z
If z=0.00:then:a=.5000
If z=0.01:then:a=.5040
...(and so on until z=0.49)
Disp a

I wasn't able to find any articles related to TI Basic here, so I'm not sure if I'm in the right place or not, but any help with this would be much appreciated!

saagarjha saagarjha · Accepted Answer · 2015-09-04T04:23:59

The equals sign (=) tests equality, which you probably don't want. You want the assignment operator, (→). Also, I don't see any End statements. If:Then: requires End. For your code, you don't need the Then, your code should be something like

Prompt x
Prompt y
Prompt w
(x-y)/w→z
Disp z
If z=0.00:.5000→a
If z=0.01:.5040→a
...(and so on until z=0.49)
Disp a

TI connect gives error "the name for this variable is not valid" on file transfer

2 Answers