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Add (full) reorthogonalization step to applyExp #322

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Add (full) reorthogonalization step to applyExp #322

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Commits on Jan 21, 2020

  1. Add (full) reorthogonalization step to applyExp 

    Added (full) reorthogonalization step to applyExp to counter inaccuracies due to the loss of orthogonality in Lanczos iteration (default in on). Also, moved `w -= beta * v0` step to be calculated before calculating `alpha` (modified vs classical Gram-Schmidt).
    @titaschanda
    titaschanda committed Jan 21, 2020
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