1.Go to this site http://www.sharpusa.com/ForHome/HomeOffice/Calculators/EL1192BL.aspx?view=manuals 2.Download the manual or if you have the manual that is on page 2 or the title is CONSTANT / CALCULS AVEC CONSTANTE / CONSTANTES.
Try Googling it then you can find a Downloadable Manual from either one of your downloading spots. ive found some manuals up at Piratebay, give it a shot :)
Question edited for clarity, turned around, added CAPS, added the word 'manual'.Duplicate question should have been deleted but Kardoc has answered, albeit wrong model. Refresh page to see your question when you press 'Post Question'.UX-105 in Russian, or 510 in English, which is probably close enough.https://www.google.com/search?q=sharp+ux-105+manual..