Fransén-Robinson constant

== English == === Etymology === Named after mathematicians Arne Fransén and Herman P. Robinson. === Proper noun === Fransén-Robinson constant (mathematics) The numeric value of the integral over the positive real numbers of the reciprocal of the gamma function, F = ∫ 0 ∞ 1 Γ ( x ) d x = 2.8077702420285... {\displaystyle \textstyle F=\int _{0}^{\infty }{\frac {1}{\Gamma (x)}}dx=2.8077702420285...} . ==== Translations ==== === Further reading === Fransén–Robinson constant on Wikipedia.Wikipedia Fransén-Robinson Constant on Wolfram MathWorld A058655 on On-Line Encyclopedia of Integer Sequences