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Mathematical Formula
black and-white
black-and-white
close-up
formulas
math
numbers
pen
trig
trigonometery
Details
3648 x 2736 pixels
2.8 MB
Aspect Ratio: 4:3
COOLPIX P100
13.4 mm
f/4.0
2/75 s
ISO 160
Software: Photos 1.3
Photographed on: February 15, 2016
CC0 / Public Domain
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