File:HP-15C Programmable Scientific Calculator introduced 1982 (edited, built from 2 images).jpg

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Original file (3,233 × 2,067 pixels, file size: 3.56 MB, MIME type: image/jpeg)

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Hewlett-Packard HP-15C, Programmable Scientific Calculator built 1982 to 1989

Summary

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Description
English: Hewlett-Packard HP-15C, a programmable scientific pocket calculator built from 1982 to 1989. It is powered on and shows the square root of 88.
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: HP-15C calculator, power on, showing square root of 88 (24623476512).jpg
original file
image extraction process
This file has been extracted from another file
: HP-15C Calculator-horizontal-2.jpg
original file
This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: took file HP-15C Calculator-horizontal-2.jpg as a basis and inserted keypad incl. silver rim (for this it was necessary to make the keypad absolutely rectangular instead of using its original deformed state from the source file) as well as complete LCD display from second source file HP-15C calculator, power on, showing square root of 88 (24623476512).jpg, then carried out white balance in GIMP and removed distortions, dust and scratches. The original can be viewed here: HP-15C Calculator-horizontal-2.jpg: . Modifications made by Pittigrilli.

Camera location41° 28′ 04.8″ N, 81° 20′ 34.2″ W  Heading=191.13747° Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo

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This file is licensed under the Creative Commons Attribution 2.0 Generic license.
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Date/TimeThumbnailDimensionsUserComment
current14:03, 13 March 2024Thumbnail for version as of 14:03, 13 March 20243,233 × 2,067 (3.56 MB)Pittigrilli (talk | contribs)intended file, built from two other files by combining the best features of each
14:01, 13 March 2024Thumbnail for version as of 14:01, 13 March 20242,929 × 1,802 (1.23 MB)Pittigrilli (talk | contribs)File:HP-15C calculator, power on, showing square root of 88 (24623476512).jpg cropped 2 % horizontally, 7 % vertically using CropTool with lossless mode.

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