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No! What if the Kernel is empty?
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>>> kernel or np.ones((3, 3))
array([[1., 1., 1.],
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* Updated postfix_evaluation.py to support Unary operators and floating point numbers Fixes#8754 and #8724
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* fix: typo
#8770
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* Added functions to calculate temperature of an ideal gas and number of moles of an ideal gas
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* updated the url and tags for yahoo finance
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* tanh function been added
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