Differentially Speaking

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Across
  1. 2. The mathematician behind a series used to express functions as sums of sine and cosine terms
  2. 4. An equation or system where all terms are proportional to the unknown function or its derivatives
  3. 6. A scalar that characterizes a transformation in linear algebra
  4. 7. A function used to solve boundary value problems, often related to potential theory and physics
Down
  1. 1. A type of equation that contains one or more derivatives of an unknown function
  2. 3. A measure of how a function's output changes as its input changes, often interpreted as the instantaneous rate of change
  3. 5. The highest derivative in a differential equation