The reverse notation :
Johnston, J. Halcro
The reverse notation : introducing negative digits with twelve as base J. Halcro Johnston - London : Blackie and Son Limited, 1937. - 72p. ; 22 cm.
Logarithms The Arabic notation
511
The reverse notation : introducing negative digits with twelve as base J. Halcro Johnston - London : Blackie and Son Limited, 1937. - 72p. ; 22 cm.
Logarithms The Arabic notation
511