Add Letex to input formula Add Letex to input formula 1 vote Vote Vote Vote Vote We're glad you're herePlease sign in to leave feedback Signed in as (Sign out) Close Close 1 vote 2 votes 3 votes Remove votes You have left! (?) (thinking…) Yao Lee shared this idea · Sep 14, 2018 · Report…Report… · Delete… · Admin → How important is this to you? Not at all You must login first! Important You must login first! Critical You must login first! We're glad you're herePlease sign in to leave feedback Signed in as (Sign out) Close Close Tweet Add a comment… We're glad you're herePlease sign in to leave feedback Signed in as (Sign out) Close Close Post comment Submitting... An error occurred while saving the comment