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Programming Tips: While Loops and Comparisons

Programming Tips: While Loops and Comparisons. Daniel Baur ETH Zurich, Institut für Chemie- und Bioingenieurwissenschaften ETH Hönggerberg / HCI F128 – Zürich E-Mail: daniel.baur@chem.ethz.ch http://www.morbidelli-group.ethz.ch/education/index . While Loops with limited Iterations.

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Programming Tips: While Loops and Comparisons

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  1. Programming Tips:While Loops and Comparisons Daniel BaurETH Zurich, Institut für Chemie- und BioingenieurwissenschaftenETH Hönggerberg / HCI F128 – ZürichE-Mail: daniel.baur@chem.ethz.chhttp://www.morbidelli-group.ethz.ch/education/index Daniel Baur / Numerical Methods for Chemical Engineerse

  2. While Loops with limited Iterations • In order to keep a while loop from iterating forever, use one of the following two schemes: Daniel Baur / Numerical Methods for Chemical Engineerse

  3. Comparing Entire Vectors and Matrices • The easiest way to compare two vectors or matrices is to do it directly: Daniel Baur / Numerical Methods for Chemical Engineerse

  4. Addendum: Implicit Trapezoid Method • If the Jacobian matrix is constant, there is no need to solve linear systems in the iteration equations: • Where A can be calculated once using • A = (I – h/2*J) \ (I + h/2*J); Daniel Baur / Numerical Methods for Chemical Engineerse

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