The Wikipedia mentions base 10 with TI Basic:<p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;TI-BASIC" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;TI-BASIC</a><p>&quot;Real numbers, using <i>decimal floating point.</i> These store up to 14 significant digits depending on the calculator model.&quot;