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We present results obtained by a software we developed for computingobservational cosmological inflation parameters: the scalar spectral index($n_s$) and the tensor-to-scalar ratio ($r$) for a standard single field andtachyon inflation, as well as for a tachyon inflation in the secondRandall-Sundrum model with an additional radion field. The calculated numericalvalues of observational parameters are compared with the latest results ofobservations obtained by the Planck Collaboration. The program is written inC/C++. The \textit{GNU Scientific Library} is used for some of the numericalcomputations and R language is used for data analysis and plots.

Numerical Calculation of Hubble Hierarchy Parameters and Observational Parameters of Inflation