Category:Mathematical tools

1

• [+] 13-knot-rope (6 F)

A

• [+] Arithmometer (4 F)

C

• [+] Calculators (16 C, 3 P, 81 F)
• [+] Comptometer (12 F)
• [+] Computers (14 C, 1 P, 386 F)
• [+] Counting rods (142 F)

C cont.

• [+] Curta calculator (1 P, 9 F)

G

• [+] Geometrical tools (11 C, 12 F)

M

• [+] Machine de Bollée (2 F)
• [+] Millionaire (3 F)

N

• [+] Napier's bones (15 F)
• [+] Navigation tools (2 C, 10 F)

O

• [+] Odhner type (14 F)

P

• [+] Pascaline (3 F)

S

• [+] Schickard (2 F)
• [+] Smith charts (18 F)