level set vs operation

level set

noun
  • The set of values x for which a real-valued function f(x) is equal to a given constant. 

  • An event consisting of level setting 

  • A state of mutual understanding among parties 

verb
  • To establish a baseline of mutual understanding 

operation

noun
  • a function which maps zero or more (but typically two) operands to a single output value. 

  • The method or practice by which actions are done. 

  • The act or process of operating; agency; the exertion of power, physical, mechanical, or moral. 

  • A procedure for generating a value from one or more other values (the operands); 

  • A military campaign (e.g. Operation Desert Storm) 

  • A planned undertaking. 

  • A business or organization. 

  • The method by which a device performs its function. 

  • A surgical procedure. 

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