On bounds of the sine and cosine along straight lines on the complex plane

DOI10.2478/ausm-2019-0027zbMath1437.33001OpenAlexW2889890682MaRDI QIDQ2178487

Feng Qi

Publication date: 11 May 2020

Published in: Acta Universitatis Sapientiae. Mathematica (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.2478/ausm-2019-0027

zbMATH Keywords

boundcomplex planecosinesinehorizontal straight linesloped straight linevertical straight line

Mathematics Subject Classification ID

Inequalities in the complex plane (30A10) Exponential and trigonometric functions (33B10)

Cites Work

• Unnamed Item
• Unnamed Item
• Unnamed Item
• Refinements, generalizations, and applications of Jordan's inequality and related problems
• A general refinement of Jordan's inequality and a refinement of L. Yang's inequality
• Analytic Inequalities
• Approximation by Integral Functions in the Complex Domain

This page was built for publication: On bounds of the sine and cosine along straight lines on the complex plane