You are downloading the Scientific Calculator XAP file v184.108.40.206 for Windows Phone. Scientific Calculator is a free Education App: ScientificCalculator is designed for everyone looking for simplicity and functionality. You can enjoy using a standard calculator for basic ... You can now download the offline XAP package file to install & try it.
Download Locations for Scientific Calculator 220.127.116.11 XAP file
To try to install it manually from an SD card, you should choose one of the server location above to get the offline Scientific Calculator XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.