HP-45 Detaylı bir bilimsel hesap makinesidir. Orjinali ile birebir aynıdır. 1968 li yıllarda Lisenin fen kolunda okurken matematik derslerdinde nerde böyle hesap makinelir kullanmak. (https://www.replikacep.com/proxy.php?request=http%3A%2F%2Freplikacep.com%2FSmileys%2Fsuperuser%2Fsmiley.gif%2522%2520class%3D%2522smiley.png&hash=10d243f4e2590142468a1f488152ebfb91670129)
(https://www.replikacep.com/proxy.php?request=http%3A%2F%2Fimg434.yukle.tc%2Fimages%2F7053ScreenHunter_04_Jan_05_1231.gif%2522%2520width%3D%2522174%2522%2520height%3D%2522300%2522%2520class%3D%2522bbc_img%2520resized.png&hash=afb74aba9942220f596d8f69afc8c969cba4dcdd)
Google Market
https://play.google.com/store/apps/details?id=net.sourceforge.uiq3.hp45 (https://play.google.com/store/apps/details?id=net.sourceforge.uiq3.hp45)
Burdan indir
http://uploaded.net/file/fz42i7gj (http://uploaded.net/file/fz42i7gj)