. . . . . . . . "Natural tangents to eight decimal places for every second of arc from 0° to 90°" . "Natural tangents to eight decimal places for every second of arc from 0 ̊to 90.̊" . "Natural tangents to eight decimal places for every second of arc from 0 ̊to 90.̊"@en . . . . . . . "Tables" . "Tables"@en .