Accession No

3380

Brief Description

mathematical curve-stencil, by Brooks, English, 20th Century

Origin

England

Maker

Brooks

Class

mathematics; drawing

Earliest Date

1905

Latest Date

1970

Inscription Date

Material

plastic (celluloid); paper (2 sorts)

Dimensions

length 205mm; breadth 74mm; envelope length 242mm; breadth 109mm

Special Collection

Provenance

Inscription

‘RECT. HYPERBOLA: Eqn. xy = I inch’ (typed on envelope)
‘“THE BROOKS”
Mathematical Curves.’ (title of leaflet)

Description Notes

Yellow celluloid stencil for the rectangular hyperbola xy = 1inch. Axis of symmetry marked.
4-page leaflet describing method of solving quadratic equations.

References

Events