File:Casio Scientific Calculators.jpg

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Summary

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Description	English: Three Casio scientific calculators of different models, from oldest to newest: fx-991ES PLUS, fx-991EX, fx-991CW. Each has a solar panel and a slightly different layout of buttons.
Source	Own work
Date	2024-05-14
Author	Ronald
Permission	See below.

Licensing

I, the copyright holder of this work, hereby publish it under the following license:

I own the copyright to this work. (For example, I have created it myself without using other works).

I grant Ronald Stewart and Maths with Ronald an irrevocable, non-exclusive, worldwide, royalty-free and transferable license to publish, use, reproduce, distribute, modify, adapt, and translate this work.

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	11:29, 14 May 2024		570 × 391 (118 KB)	Ronald (talk \| contribs)	Uploaded own work with UploadWizard

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Casio Calculator Classwiz fx-991CW

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Camera manufacturer	Apple
Camera model	iPhone 15 Pro
Exposure time	1/108 sec (0.0092592592592593)
F Number	f/1.7799999713881
ISO speed rating	200
Date and time of data generation	12:10, 14 May 2024
Lens focal length	6.7649998656528 mm
Latitude	52° 4′ 35.26″ N
Longitude	4° 21′ 39.24″ E
Altitude	1.532 metres above sea level
Orientation	Normal
Horizontal resolution	72 dpi
Vertical resolution	72 dpi
Software used	17.4.1
File change date and time	12:10, 14 May 2024
Exposure Program	Normal program
Exif version	2.32
Date and time of digitising	12:10, 14 May 2024
APEX shutter speed	6.7566428852312
APEX aperture	1.6637544366005
APEX brightness	2.76942516462
APEX exposure bias	0
Metering mode	Spot
Flash	Flash did not fire, compulsory flash suppression
DateTimeOriginal subseconds	743
DateTimeDigitised subseconds	743
Sensing method	One-chip colour area sensor
Scene type	A directly photographed image
Exposure mode	Auto exposure
White balance	Auto white balance
Focal length in 35 mm film	24 mm
Speed unit	Kilometres per hour
Speed of GPS receiver	0
Reference for direction of image	True direction
Direction of image	145.72570794003
Reference for bearing of destination	True direction
Bearing of destination	145.72570794003
GPS date	14 May 2024
IIM version	2