On logarithm of circular and hyperbolic functions and bounds for exp(±x2)

Abstract

We show that certain known or new inequalities for the logarithm of circular hyperbolic functions imply bounds for exp(±x2) proved in [1].

Keywords

• trigonometric
• hyperbolic
• integral inequalities
• 26d05
• 26d07
• 26d15
• 33b10