This fonts are authors' property, and are either shareware, demo versions or public domain. The licence mentioned above the download button is just an indication. Please look at the readme-files in the archives or check the indicated author's website for details, and contact him if in doubt. If no author/licence is indicated that's because we don't have information, that doesn't mean it's free.
An exact replica of the large font used in the TI-83 Plus and the TI-84 Plus series of graphing calculators. Each character has been mapped to an equivalent Unicode code point in the BMP.