This code implements Finite Element Analysis (FEA) for post-tensioned concrete slabs, as detailed in [1] and [2]. The user specifies the slab's geometry, boundary conditions, cable layout, as well as the material and loading properties. The software computes the structural response, including deflections and stress distribution, and outputs a vector of nodal balance forces. Main file is FEAPTslab.m References: [1] Zelickman, Y., & Amir, O. (2021). "Layout optimization of post-tensioned cables in concrete slabs". Structural and Multidisciplinary Optimization, 63(4), 1951-1974. [2] Zelickman, Y., & Amir, O. (2022). "Optimization of post-tensioned concrete slabs for minimum cost". Engineering Structures, 259, 114132.