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Theorem chebyshev₂_complex_cos

Modification history

2021-03-06 01:08
src/analysis/special_functions/trigonometric.lean
chore(polynomial/chebyshev): changes names of chebyshev₁ to chebyshev.T and chebyshev₂ to chebyshev.U (#6519) …
Deleted chebyshev₂_complex_cosView on Github →
2021-01-29 06:49
src/analysis/special_functions/trigonometric.lean
feat(ring_theory/polynomial/chebyshev/defs): Chebyshev polynomials of the second kind (#5793) …
Added chebyshev₂_complex_cosView on Github →