mathematics vs reckoning

mathematics

noun
  • A person's ability to count, calculate, and use different systems of mathematics at differing levels. 

  • An abstract representational system studying numbers, shapes, structures, quantitative change and relationships between them. 

reckoning

noun
  • The action of calculating or estimating something. 

  • The working out of consequences or retribution for one's actions. 

  • An opinion or judgement. 

  • A summing up or appraisal. 

  • The settlement of accounts, as between parties. 

How often have the words mathematics and reckoning occurred in a corpus of books? (source: Google Ngram Viewer )