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qiskit.utils.apply_prefix

apply_prefix(value, unit)

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Given a SI unit prefix and value, apply the prefix to convert to standard SI unit.

Parameters

  • value (float | ParameterExpression) – The number to apply prefix to.
  • unit (str) – String prefix.

Returns

Converted value.

Return type

float

Note

This may induce tiny value error due to internal representation of float object. See https://docs.python.org/3/tutorial/floatingpoint.html for details.

Raises

ValueError – If the units aren’t recognized.

Return type

float

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