A073442 -id:A073442 - cp's OEIS frontend

A073440 Decimal expansion of csc (Pi degrees) (of course csc (Pi radians) is undefined).

1, 8, 2, 4, 6, 9, 5, 4, 7, 8, 4, 5, 9, 4, 1, 3, 5, 4, 0, 0, 8, 0, 3, 5, 1, 7, 7, 3, 7, 6, 3, 9, 1, 5, 3, 6, 2, 0, 5, 3, 1, 8, 6, 5, 2, 2, 6, 7, 3, 3, 2, 5, 4, 3, 4, 9, 8, 2, 0, 4, 0, 7, 0, 4, 9, 9, 9, 8, 5, 2, 3, 5, 0, 6, 4, 3, 2, 1, 7, 6, 8, 7, 2, 9, 3, 1, 0, 6, 4, 0, 6, 7, 5, 7, 2, 7, 7, 0, 8, 7, 8, 2, 6, 6, 4

Offset: 2

Rick L. Shepherd, Jul 31 2002

			18.2469547845941354008035177376...

Cf. A051553 (sin(Pi degrees)=1/A073440), A051554 (cos(Pi degrees)), A051555 (tan(Pi degrees)), A073441 (sec(Pi degrees)), A073442 (cot(Pi degrees)).

RealDigits[Csc[Pi Degree],10,120][[1]] (* Harvey P. Dale, Jan 31 2014 *)

PARI
```
1/sin(Pi^2/180)
```

A073441 Decimal expansion of sec (Pi degrees) (of course sec (Pi radians) = -1).

Original entry on oeis.org

1, 0, 0, 1, 5, 0, 5, 1, 1, 2, 0, 9, 4, 0, 5, 1, 6, 1, 2, 0, 1, 9, 7, 9, 2, 0, 9, 2, 2, 8, 1, 6, 6, 8, 7, 6, 9, 2, 5, 7, 3, 6, 0, 8, 9, 2, 5, 0, 2, 3, 1, 1, 2, 2, 3, 4, 3, 3, 6, 6, 9, 1, 5, 1, 7, 7, 8, 1, 3, 8, 8, 4, 7, 5, 0, 5, 3, 7, 4, 5, 6, 7, 2, 8, 6, 8, 1, 0, 2, 8, 7, 5, 0, 0, 0, 9, 4, 2, 4, 7, 4, 3, 4, 6, 1

Offset: 1

Rick L. Shepherd, Jul 31 2002

			1.00150511209405161201979209228...

Cf. A051554 (cos(Pi degrees)=1/A073441), A051553 (sin(Pi degrees)), A051555 (tan(Pi degrees)), A073440 (csc(Pi degrees)), A073442 (cot(Pi degrees)).

RealDigits[Sec[Pi Degree],10,120][[1]] (* Harvey P. Dale, Apr 06 2019 *)

PARI
```
1/cos(Pi^2/180)
```

cp's OEIS Frontend

A073440 Decimal expansion of csc (Pi degrees) (of course csc (Pi radians) is undefined).

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