Statements (18)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:mathematical_concept
|
| gptkbp:author |
gptkb:John_Machin
|
| gptkbp:category |
pi formulas
|
| gptkbp:field |
gptkb:mathematics
numerical analysis trigonometry |
| gptkbp:form |
π/4 = 4 arctan(1/5) - arctan(1/239)
|
| gptkbp:historicalSignificance |
enabled calculation of pi to 100 decimal places in 1706
|
| https://www.w3.org/2000/01/rdf-schema#label |
Machin's formula for pi
|
| gptkbp:inspiredBy |
Machin-like formulas
|
| gptkbp:involvesFunction |
arctangent
|
| gptkbp:notableFor |
rapid convergence
|
| gptkbp:purpose |
calculation of pi
|
| gptkbp:type |
arctangent identity
|
| gptkbp:usedFor |
high-precision computation of pi
|
| gptkbp:yearProposed |
1706
|
| gptkbp:bfsParent |
gptkb:John_Machin
|
| gptkbp:bfsLayer |
8
|