Eduard Weyr2026-03-222026-03-22189210.21136/cpmf.1892.122284https://doi.org/10.21136/cpmf.1892.122284https://andeanlibrary.org/handle/123456789/68791953 k tomu, e lze souet nekonen ady, jej len u n jest racionalnou funkc indexu rc, vdy vyjditi pomoc derivac funkce log r(x), ano e v jistch ppadech lze souet ten vy sliti elementarnmi funkcemi, toti logarithmy a funkcemi goniometrickmicsSeries (stratigraphy)MathematicsAlgebra over a fieldPure mathematicsarticle