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scale (mathematics)

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Scale (mathematics)


Numerical relationship, expressed as a ratio, between the actual size of an object and the size of an image that represents it on a map, plan, or diagram.

If an object has been enlarged, the amount of increase (scale factor) can be found by dividing a side of the enlarged object by the corresponding side of the original shape. A scale factor of less than one gives a decrease in size. An object is scaled by multiplying it by the scale factor; for example, a model railway may require a scale of 1 in a 100, so all measurements must be multiplied by 1/100 (0.01).

© Research Machines plc 2008. All rights reserved. Helicon Publishing is a division of Research Machines plc.


 
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2-D graphics
3-D graphics
accuracy
area
axonometric projection
bearing (navigation)
circumference
construction
conversion graph
density
drawing program
error
exploded view
grid reference
imperial system
isometric projection
length
mass (physics)
metric system
oblique projection
orthographic projection
perimeter
perspective
rendering
scale (mathematics)
semiology
significant figures
speed (physics)
time (science)
volume
weight

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