What is stored integer value of a fi object?

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Rishi Khanna
Rishi Khanna 2016-9-8
回答： Andy Bartlett 2018-2-12
I am not able to understand the purpose of the 'fi object' creation and other associated concepts, such as, stored integer of a fi object, its binary/dec representation etc.
Take, for instance, this example code:
>> a = fi(pi, 1, 8, 3)
a =
3.1250
DataTypeMode: Fixed-point: binary point scaling
Signedness: Signed
WordLength: 8
FractionLength: 3
>> in_x = storedInteger(a)
in_x =
25
>> bin(a)
ans =
00011001
>> dec(a)
ans =
025
Please explain what is happening over here.

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回答（1 个）

Andy Bartlett
Andy Bartlett 2018-2-12
Please see https://www.mathworks.com/help/fixedpoint/ug/scaling_f6389.html

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