Pi Approximation Day 2025 is celebrated on 22 July, marking the mathematical significance of the fraction 22/7, a widely used approximation of pi. This special day honors the constant pi (π), which ...
1 Department of Psychology, University of Pittsburgh, Pittsburgh, PA, USA 2 Learning Research and Development Center, University of Pittsburgh, Pittsburgh, PA, USA Past research suggests that ...
ABSTRACT: We present an analytical solution for the luminosity distance in spatially flat cosmology with pressureless matter and the cosmological constant. The complex analytical solution is made of a ...
一部の結果でアクセス不可の可能性があるため、非表示になっています。
アクセス不可の結果を表示する