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Approximate equality: Difference between revisions
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Fixed a typo.
Thundergnat (talk | contribs) m (Thundergnat moved page Approximate Equality to Approximate equality: Follow normal task title capitalization policy) |
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=={{header|Nim}}==
To compare the floating point values, we use a relative tolerance.
In order to display the values “a” and “b” as provided, without any rounding, we transmit them as strings to a comparison procedure which compute the floating point values. If the first value “a” is provided as an operation, we use a comparison procedure which accepts the computed value of “a” as second parameter. Here, “b” is never provided as an operation and can always be transmitted as a string.
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proc `~=`(a, b: float): bool =
## Check if "a" and "b" are
## We use a relative tolerance to compare the values.
result = abs(a - b) < max(abs(a), abs(b)) * Tolerance
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