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Add caching for formula caclulation token stack #863
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Will there be an update to this? I would really like to see this resolve as my current goalSeek is running very slow due to clearing calculation cache for each iteration |
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Add ability to cache the token stack for increased performance. In basic tests, this yields approximately 20% performance increase when repeatedly re-calculating formula results. See: http://stackoverflow.com/questions/36049614/how-to-improve-formula-calculation-with-phpexcel/36067485#36067485