The Development of Discrete Version of Laplace Transformation (Sigma (If) Transformation) Obtained from the Relationship Between Laplace and Fourier Transformations. GJSFR [Internet]. 2013 May 6 [cited 2026 Aug. 14];13(F3):47-55. Available from: https://www.journalofscience.org/index.php/GJSFR/article/view/100451