documentation: Greek/math sym, engineering format

1 files changed, 169 insertions, 0 deletions

diff --git a/tests/gps.sc b/tests/gps.sc
new file mode 100644
index 0000000..49d6515
--- /dev/null
+++ b/tests/gps.sc
@@ -0,0 +1,169 @@
+# This data file was generated by the Spreadsheet Calculator.  That is SC-IM, the improved one!
+# You almost certainly shouldn't edit it.
+
+format A 11 2 0
+format B 28 2 0
+format C 21 2 0
+format D 12 2 2
+format F 12 2 2
+mark a B37 G38
+mark b A1
+mark c A1
+mark d A1
+mark e A1
+mark f A1
+mark g A1
+mark h A1
+mark i A1
+mark j A1
+mark k A1
+mark l A1
+mark m A1
+mark n A1
+mark o A1
+mark p A1
+mark q A1
+mark r A1
+mark s A6 G6
+mark t A1
+mark u A1
+mark v A1
+mark w A1
+mark x D4
+mark y A1
+mark z A1
+leftstring A0 = "Constants"
+leftstring B1 = "Speed of light"
+label C1 = "c"
+let D1 = F1/1000
+label E1 = "km/s"
+let F1 = 299492458
+label G1 = "m/s"
+leftstring B2 = "Gravitational const"
+label C2 = "G"
+let F2 = 6.67408e-11
+label G2 = "N/kg"
+leftstring B3 = "Mass of Earth"
+label C3 = "m_E"
+let F3 = 5.972e+24
+label G3 = "kg"
+leftstring B4 = "Mean radius of Earth"
+label C4 = "r_e"
+let D4 = 6400
+label E4 = "km"
+let F4 = D4*1000
+label G4 = "m"
+leftstring A6 = "GPS signal"
+leftstring B6 = "https://en.wikipedia.org/wiki/GPS_signals"
+leftstring B7 = "L-band base (IF)"
+label C7 = "ω_i"
+let D7 = 10.23
+label E7 = "MHz"
+let F7 = D7*1000000
+label G7 = "Hz"
+leftstring B8 = "L1 carrier"
+label C8 = "ω_1"
+let D8 = D7*154
+label E8 = "MHz"
+let F8 = D8*1000000
+label G8 = "Hz"
+leftstring B9 = "L2 carrier"
+label C9 = "ω_2"
+let D9 = D7*120
+label E9 = "MHz"
+let F9 = D9*1000000
+label G9 = "Hz"
+leftstring B10 = "L3 carrier"
+label C10 = "ω_3"
+let D10 = D7*135
+label E10 = "MHz"
+let F10 = D10*1000000
+label G10 = "Hz"
+leftstring B11 = "L4 carrier"
+label C11 = "ω_4"
+let D11 = D7*1214/9
+label E11 = "MHz"
+let F11 = D11*1000000
+label G11 = "Hz"
+leftstring B12 = "L5 carrier"
+label C12 = "ω_5"
+let D12 = D7*115
+label E12 = "MHz"
+let F12 = D12*1000000
+label G12 = "Hz"
+leftstring B14 = "IF period"
+label C14 = "τ_i"
+let D14 = F14*1000000000
+label E14 = "ns"
+let F14 = 1/F7
+label G14 = "Hz"
+leftstring A16 = "Orbit"
+leftstring B16 = "https://en.wikipedia.org/wiki/Global_Positioning_System"
+leftstring B17 = "Min range"
+label C17 = "r_min"
+let D17 = 20180
+label E17 = "km"
+let F17 = D17*1000
+label G17 = "m"
+leftstring B18 = "Orbit radius"
+label C18 = "r_o = r_min+r_e"
+let D18 = F18/1000
+label E18 = "km"
+let F18 = F17+F$4
+label G18 = "m"
+leftstring B19 = "Max range (at horizon)"
+label C19 = "r_max=√(r_o^2-r_e^2)"
+let D19 = F19/1000
+label E19 = "km"
+let F19 = @sqrt(F18*F18-F$4*F$4)
+label G19 = "m"
+leftstring B21 = "Light time min"
+label C21 = "r_min/c"
+let D21 = F21*1000
+label E21 = "ms"
+let F21 = F17/$F$1
+label G21 = "s"
+leftstring B22 = "Light time"
+label C22 = "r_max/c"
+let D22 = F22*1000
+label E22 = "ms"
+let F22 = F19/$F$1
+label G22 = "s"
+leftstring B24 = "Orbital speed"
+label C24 = "v_o = √(G.m_E/r_o)"
+let D24 = F24*3600/1000
+label E24 = "km/h"
+let F24 = @sqrt(F$2*F$3/F18)
+label G24 = "m/s"
+leftstring B26 = "sin∠(horizon,Earth centre)"
+label C26 = "sin θ = r_e/r_o"
+let F26 = F$4/F18
+leftstring B27 = "Range rate at horizon"
+label C27 = "v_h=v_o sin θ"
+let D27 = F27*3600/1000
+label E27 = "km/h"
+let F27 = F24*F26
+label G27 = "m/s"
+leftstring A29 = "Max Doppler"
+leftstring B30 = "Fractional Doppler"
+label C30 = "z = v_h/c"
+let F30 = F27/F$1
+leftstring B31 = "L1 shift"
+label C31 = "z.ω_1"
+let D31 = D8*F$30*1000
+label E31 = "kHz"
+let F31 = D31*1000
+label G31 = "Hz"
+leftstring B32 = "L2 shift"
+label C32 = "z.ω_2"
+let D32 = D9*F$30*1000
+label E32 = "kHz"
+let F32 = D32*1000
+label G32 = "Hz"
+cellcolor A0 "fg=BLACK bg=CYAN"
+cellcolor A6 "fg=BLACK bg=CYAN"
+cellcolor B6:G6 "fg=BLACK bg=YELLOW"
+cellcolor A16 "fg=BLACK bg=CYAN"
+cellcolor B16:G16 "fg=BLACK bg=YELLOW"
+cellcolor A29 "fg=BLACK bg=CYAN"
+goto A35