How To Spell calculations?

Correct spelling: calculations

Google Ngram Viewer results for calculations:

This graph shows how "calculations" have occurred between 1800 and 2008 in a corpus of English books.

What are the usage examples for calculations?

  1. He now discovered that there was one thing he had omitted, and which was doubtless the cause why he did not flourish as he should have done according to his calculations – Hodge and His Masters by Richard Jefferies