Apply Formal Operators in Discrete Calculus
Formal operations can be applied with ease for discrete calculus operations such as differencing, summation, and Z transforms.
Verify that DifferenceDelta is the inverse of Sum.
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Verify that DiscreteRatio is the inverse of Product.
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Apply DifferenceDelta to an indefinite sum.
| In[5]:= |  X |
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This is significantly faster than the evaluated version.
| In[6]:= |  X |
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Apply standard properties of ZTransform.
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| Out[7]= |  |
| In[8]:= |  X |
| Out[8]= |  |
| In[9]:= |  X |
| Out[9]= |  |
