amen zwa, esq.<p>"In today's video, we'll take a look at my grandfather's vintage HP-45 <a href="https://mathstodon.xyz/tags/calculator" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>calculator</span></a> from 1973"—so he opens.</p><p>As an <a href="https://mathstodon.xyz/tags/EE" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>EE</span></a> who used <a href="https://mathstodon.xyz/tags/HP" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>HP</span></a> <a href="https://mathstodon.xyz/tags/RPN" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RPN</span></a> calculators for my whole career, that word, "grandfather", hit me hard.😀</p><p><a href="https://youtu.be/56nq_FNll6Q?si=m-he0vNtIriQTzhO" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">youtu.be/56nq_FNll6Q?si=m-he0v</span><span class="invisible">NtIriQTzhO</span></a></p>