reckoner

Definitions of reckoner
1

n an expert at calculation (or at operating calculating machines)

Synonyms:
calculator, computer, estimator, figurer
Types:
show 5 types...
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adder
a person who adds numbers
number cruncher
someone able to perform complex and lengthy calculations
actuary, statistician
someone versed in the collection and interpretation of numerical data (especially someone who uses statistics to calculate insurance premiums)
subtracter
a person who subtracts numbers
surveyor
someone who conducts a statistical survey
Type of:
expert
a person with special knowledge or ability who performs skillfully

n a handbook of tables used to facilitate computation

Synonyms:
ready reckoner
Type of:
enchiridion, handbook, vade mecum
a concise reference book providing specific information about a subject or location

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