eval_cos: Evaluate cosine on a ciphertext
In openfhe.R: R Interface to the 'OpenFHE' Fully Homomorphic Encryption Library
eval_cos R Documentation
Evaluate cosine on a ciphertext
Description
Evaluate cosine on a ciphertext
Usage
eval_cos(ct, a, b, degree)
Arguments
ct
A Ciphertext
a
Lower bound of the approximation interval
b
Upper bound of the approximation interval
degree
Chebyshev polynomial degree
Value
A Ciphertext holding the encrypted, slot-wise cosine of ct,
approximated by a Chebyshev polynomial of the given degree on the
interval [a, b]. Accuracy degrades outside that interval, and the
result sits ceiling(log2(degree)) + 1 levels below ct.
openfhe.R documentation built on Nov. 13, 2026, 5:07 p.m.
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| eval_cos | R Documentation |
Evaluate cosine on a ciphertext
Description
Evaluate cosine on a ciphertext
Usage
eval_cos(ct, a, b, degree)
Arguments
ct |
A Ciphertext |
a |
Lower bound of the approximation interval |
b |
Upper bound of the approximation interval |
degree |
Chebyshev polynomial degree |
Value
A Ciphertext holding the encrypted, slot-wise cosine of ct,
approximated by a Chebyshev polynomial of the given degree on the
interval [a, b]. Accuracy degrades outside that interval, and the
result sits ceiling(log2(degree)) + 1 levels below ct.
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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