US Symbolics keyboard

A US English extension providing scientific Unicode characters while pressing AltGr, developed by Daniele Baisero for Linux.

Esc
mode : numeric row shift ~! ¬ @# £ $%^& § *( · ) ° _ ± + ÷
mode : numeric row `1 ¹ 2 ² 3 ³ 4567890-= ×
mode : top row shift QWE Ε R Ρ T Τ Y Υ U Θ I Ι O Ο P Π {}
mode : top row qwe ε r ρ t τ y υ u θ i ι o ο p π []
mode : home row shift A Α S Σ D Δ F Φ G Γ H Η J Ξ K Κ L Λ :"|
mode : home row a α s σ d δ f φ g γ h η j ξ k κ l λ ;'\
mode : bottom row shift Z Ζ X Χ C Ψ V Ω B Β N Ν M Μ < « > » ?
mode : bottom row z ζ x χ c ψ v ω b β n ν m μ ,./

accented
decomposes to the original letter with a combining accent
similar
transliterates (mostly) into the unmodified letter
greek
a different greek letter not corresponding with latin transcription
symbol
other character not directly deducible from key
punctuation
(punctuation) mark