In order to solve the two-dimensional problem of cascades under hypothesis of incompressible potential flow with no friction losses, numerical methodes are used which involve solving of linear systems of algebraic equations. It is proposed subsequently a method which, by using of complex 'analysis' technics, leads to explicit formulas, so that the systems of equations are avoided. The limits of application area for the proposed method are the same as in case of Schlichting's method, that is small curved plates at small incidence angles. The proposed method is based on: explicit formula for the single-profile flow, incompressible; the results of the conformal mappings applied to the straight plates in cascade; integral equation of the circulation for the thin profiles in cascade.
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