Theorems · Theorem · complex analysis
Complex.norm_log_sub_logTaylor_le
∀ (n : ℕ) {z : ℂ},
‖z‖ < 1 → ‖Complex.log (1 + z) - Complex.logTaylor (n + 1) z‖ ≤ ‖z‖ ^ (n + 1) * (1 - ‖z‖)⁻¹ / (↑n + 1)The difference of log (1+z) and its (n+1)st Taylor polynomial can be bounded in
terms of ‖z‖.
- Cited by
- 4 results in Mathlib
- Foundations
- Depth 272 from the axioms · uses propext, Classical.choice, Quot.sound
Around this declaration
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Cites69
Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.
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- Norm.normstatement and proof · cited by 5,413
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- mul_commproof · cited by 2,262
- LT.lt.leproof · cited by 2,189
- Set.Iccproof · cited by 1,702
- Filter.univ_mem'proof · cited by 1,672
Cited by4
Results whose statement or proof uses this declaration.
- Complex.hasSum_taylorSeries_logproof · cited by 2
- Complex.norm_log_one_sub_inv_add_logTaylor_neg_leproof · cited by 1
- Complex.norm_log_one_add_sub_self_leproof · cited by 1
- Complex.log_sub_logTaylor_isBigOproof · cited by 1