public interface NTTStrategy
Note: an implementing transformation class is required only to be able to perform an inverse transform on data transformed by the same class, not by any other class.
Modifier and Type | Method and Description |
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long |
getTransformLength(long size)
Return the supported transform length for the specified data size.
|
void |
inverseTransform(DataStorage dataStorage,
int modulus,
long totalTransformLength)
Perform an inverse transform on the data.
|
void |
transform(DataStorage dataStorage,
int modulus)
Perform a forward transform on the data.
|
void transform(DataStorage dataStorage, int modulus) throws ApfloatRuntimeException
Multiple moduli can be used, if the convolution algorithm uses the Chinese Remainder Theorem to calculate the final result.
dataStorage
- The data to be transformed.modulus
- Number of modulus to use (in case the transform supports multiple moduli).ApfloatRuntimeException
void inverseTransform(DataStorage dataStorage, int modulus, long totalTransformLength) throws ApfloatRuntimeException
Multiple moduli can be used, if the convolution algorithm uses the Chinese Remainder Theorem to calculate the final result.
dataStorage
- The data to be transformed.modulus
- Number of modulus to use (in case the transform supports multiple moduli).totalTransformLength
- Total transform length; the final result elements are divided by this value.ApfloatRuntimeException
long getTransformLength(long size)
size
- Length of the data to be transformed.Copyright © 2019. All rights reserved.