24 lines
617 B
Lua
24 lines
617 B
Lua
io.write("Enter latitude => ")
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lat = tonumber(io.read())
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io.write("Enter longitude => ")
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lng = tonumber(io.read())
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io.write("Enter legal meridian => ")
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ref = tonumber(io.read())
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print()
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slat = math.sin(math.rad(lat))
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print(string.format(" sine of latitude: %.3f", slat))
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print(string.format(" diff longitude: %.3f", lng-ref))
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print()
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print("Hour, sun hour angle, dial hour line angle from 6am to 6pm")
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for h = -6, 6 do
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hra = 15 * h
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hra = hra - (lng - ref)
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hla = math.deg(math.atan(slat * math.tan(math.rad(hra))))
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print(string.format("HR=%3d; HRA=%7.3f; HLA=%7.3f", h, hra, hla))
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end
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