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Older Mathematica Items
 

 

 

 

 

Scientific Arts

Common

•Functions and parameters contained in this package:

In[1]:=

RadarPackageFunctions[Common, 3]

Out[1]//DisplayForm=

[Graphics:HTMLFiles/index_2.gif]

•Package functions and their basic documentation along with simple examples

•ApproximateExpression

[Graphics:HTMLFiles/index_3.gif]

In[2]:=

PackagesAndFunctionsWithOption[Method]

Out[2]//DisplayForm=

[Graphics:HTMLFiles/index_5.gif]

•April

[Graphics:HTMLFiles/index_6.gif]

•AstronomicalUnit

[Graphics:HTMLFiles/index_7.gif]

Usage message for AstronomicalUnit

•August

[Graphics:HTMLFiles/index_8.gif]

•AverageEarthRadius

[Graphics:HTMLFiles/index_9.gif]

In[3]:=

AverageEarthRadius

Out[3]=

31855043857/5000

In[4]:=

N[AverageEarthRadius]

Out[4]=

6.3710087714`*^6

•BoltzmannsConstant

[Graphics:HTMLFiles/index_14.gif]

In[5]:=

BoltzmannsConstant

Out[5]=

1.380658`*^-23

•ButtonGridLength

[Graphics:HTMLFiles/index_17.gif]

Usage message for ButtonGridLength

•CalculatorEngine

[Graphics:HTMLFiles/index_18.gif]

Usage message for CalculatorEngine

•CBand

[Graphics:HTMLFiles/index_19.gif]

In[6]:=

FrequencyRange[CBand]/GHz

Out[6]=

{{4, 8}}

•CelsiusToFarenheit

[Graphics:HTMLFiles/index_22.gif]

In[7]:=

CelsiusToFarenheit[c]

Out[7]=

32 + (9 c)/5

•CelsiusToKelvin

[Graphics:HTMLFiles/index_25.gif]

In[8]:=

CelsiusToKelvin[c]

Out[8]=

273.15` + c

•ColumnLabelStyle

[Graphics:HTMLFiles/index_28.gif]

In[9]:=

PackageFunctionsWithOption[Common, ColumnLabelStyle]

Out[9]=

{TabularReport}

In[10]:=

PackagesAndFunctionsWithOption[ColumnLabelStyle]

Out[10]//DisplayForm=

[Graphics:HTMLFiles/index_32.gif]

•Common

[Graphics:HTMLFiles/index_33.gif]

•ComputationMethod

[Graphics:HTMLFiles/index_34.gif]

In[11]:=

PackageFunctionsWithOption[Common, ComputationMethod]

Out[11]=

{}

In[12]:=

PackagesAndFunctionsWithOption[ComputationMethod]

Out[12]//DisplayForm=

[Graphics:HTMLFiles/index_38.gif]

In[13]:=

Options[Swerling4]

Out[13]=

{ComputationMethod -> GammaExpansion}

In[14]:=

?? SwerlingModel4

SwerlingModel4 denotes the Swerling 4 target fluctuation model.

Attributes[SwerlingModel4] = {Protected}
Options[SwerlingModel4] = {ComputationMethod -> GammaExpansion}

In[15]:=

? GammaExpansion

GammaExpansion is a possible value for the ComputationMethod option to SwerlingModel4.

•CubicMethod

[Graphics:HTMLFiles/index_47.gif]

•December

[Graphics:HTMLFiles/index_48.gif]

•EarthRadiusScale

[Graphics:HTMLFiles/index_49.gif]

In[16]:=

PackageFunctionsWithOption[Common, EarthRadiusScale]

Out[16]=

{}

In[17]:=

PackagesAndFunctionsWithOption[EarthRadiusScale]

Out[17]//DisplayForm=

[Graphics:HTMLFiles/index_53.gif]

•EarthRotationRate

[Graphics:HTMLFiles/index_54.gif]

In[18]:=

EarthRotationRate

Out[18]=

0.000072921151467`

•EarthSemiMajorAxis

[Graphics:HTMLFiles/index_57.gif]

In[19]:=

EarthSemiMajorAxis

Out[19]=

6378137

•EarthSemiMinorAxis

[Graphics:HTMLFiles/index_60.gif]

In[20]:=

EarthSemiMinorAxis

Out[20]=

6.3567523141`*^6

•EarthSunMeanDistance

In[21]:=

UsageMessageCell[EarthSunMeanDistance, UsagesOnly -> True]

[Graphics:HTMLFiles/index_64.gif]

Usage message for EarthSunMeanDistance

[Graphics:HTMLFiles/index_65.gif]

Usage message for EarthSunMeanDistance

[Graphics:HTMLFiles/index_66.gif]

Usage message for EarthSunMeanDistance

•Edgeworth

[Graphics:HTMLFiles/index_67.gif]

•ExactExpression

[Graphics:HTMLFiles/index_68.gif]

•FarenheitToCelsius

[Graphics:HTMLFiles/index_69.gif]

In[22]:=

FarenheitToCelsius[f]

Out[22]=

3333333280/3

•FarenheitToKelvin

[Graphics:HTMLFiles/index_72.gif]

In[23]:=

FarenheitToKelvin[f]

Out[23]=

1.1111113664833333`*^9

•February

[Graphics:HTMLFiles/index_75.gif]

•FeetToKilometers

[Graphics:HTMLFiles/index_76.gif]

Usage message for FeetToKilometers

•FeetToMeters

[Graphics:HTMLFiles/index_77.gif]

In[24]:=

FeetToMeters

Out[24]=

381/1250

•FeetToMiles

[Graphics:HTMLFiles/index_80.gif]

Usage message for FeetToMiles

•FeetToNauticalMiles

[Graphics:HTMLFiles/index_81.gif]

Usage message for FeetToNauticalMiles

•FindRootMethod

[Graphics:HTMLFiles/index_82.gif]

•FindRootSeed

[Graphics:HTMLFiles/index_83.gif]

In[25]:=

PackagesAndFunctionsWithOption[FindRootSeed]

Out[25]//DisplayForm=

[Graphics:HTMLFiles/index_85.gif]

•FirstColumnStyle

[Graphics:HTMLFiles/index_86.gif]

In[26]:=

PackagesAndFunctionsWithOption[FirstColumnStyle]

Out[26]//DisplayForm=

[Graphics:HTMLFiles/index_88.gif]

•FrequencyBand

[Graphics:HTMLFiles/index_89.gif]

In[28]:=

FrequencyBand[3 MHz]

Out[28]=

HFBand

In[29]:=

FrequencyBand[Frequency[.1 ]]

Out[29]=

RadarSBand

In[30]:=

FrequencyBand[Frequency[.01 ]]

Out[30]=

KaBand

In[31]:=

RadarBands[]

Out[31]=

{HFBand, RadarVHFBand, VHFBand, RadarUHFBand, UHFBand, RadarLBand, LBand, RadarSBand, SBand, R ... d, RadarKaBand, KaBand, RadarVBand, VBand, RadarWBand, WBand, RadarMillimeterBand, MillimeterBand}

•FrequencyRange

[Graphics:HTMLFiles/index_98.gif]

In[32]:=

TableForm[Transpose[{RadarBands[], FrequencyRange /@ RadarBands[]/Ghz}]] // N

Out[32]//TableForm=

[Graphics:HTMLFiles/index_100.gif]

•Frequency

[Graphics:HTMLFiles/index_101.gif]

In[33]:=

Frequency[λ]

Out[33]=

299792458/λ

•FromdB

[Graphics:HTMLFiles/index_104.gif]

In[34]:=

FromdB[3]

Out[34]=

10^(3/10)

In[35]:=

N[FromdB[3]]

Out[35]=

1.9952623149688797`

•GeneralCalculator

[Graphics:HTMLFiles/index_109.gif]

In[36]:=

SetOptions[ GeneralCalculator["Trig Functions", {"Angle"}, {π/8}, {{{ ... olor[0, 0, 1]}, Tan, "For Tan"}}, "Result"], Background -> Hue[.3, .2, 7] ]

[Graphics:HTMLFiles/index_111.gif]

•Ghz

[Graphics:HTMLFiles/index_112.gif]

In[37]:=

Ghz

Out[37]=

1000000000

•GHz

[Graphics:HTMLFiles/index_115.gif]

In[38]:=

GHz

Out[38]=

1000000000

•GreenwichSiderealTime

[Graphics:HTMLFiles/index_118.gif]

Usage message for GreenwichSiderealTime

The Julian date 2451545 is Julian date of the Julian reference point (12:00 Dec. 31 1999 relative to Jan1, 4713 BC).  The units of the Julian date are days:

In[39]:=

GreenwichSiderealTime[2451545]

Out[39]=

0.030367610108845852`

•HFBand

[Graphics:HTMLFiles/index_121.gif]

In[40]:=

FrequencyRange[HFBand]/GHz

Out[40]=

{{3/1000, 3/100}}

•HPolarization

[Graphics:HTMLFiles/index_124.gif]

•HPol

[Graphics:HTMLFiles/index_125.gif]

•IceTemperature

[Graphics:HTMLFiles/index_126.gif]

In[41]:=

IceTemperature

Out[41]=

273.15`

•InBandQ

[Graphics:HTMLFiles/index_129.gif]

In[42]:=

InBandQ[4 MHz, HFBand]

Out[42]=

True

In[43]:=

InBandQ[39 MHz, HFBand]

Out[43]=

False

•January

[Graphics:HTMLFiles/index_134.gif]

•JulianDate

[Graphics:HTMLFiles/index_135.gif]

In[44]:=

JulianDate[{2003, 3, 9}]

Out[44]=

JulianDate[{2003, 3, 9}]

In[45]:=

GreenwichSiderealTime[JulianDate[{2003, 3, 9}]]

Out[45]=

6.300387486748799` FractionalPart[JulianDate[{2003, 3, 9}]] + ° (1.7399358931356819` + 1/ ... 545 + IntegerPart[JulianDate[{2003, 3, 9}]])) (-2451545 + IntegerPart[JulianDate[{2003, 3, 9}]])))

In[46]:=

LocalSiderealTime[JulianDate[{2003, 3, 9}], θ _ L]

Out[46]=

6.300387486748799` FractionalPart[JulianDate[{2003, 3, 9}]] + ° (1.7399358931356819` + 1/ ... Part[JulianDate[{2003, 3, 9}]])) (-2451545 + IntegerPart[JulianDate[{2003, 3, 9}]]))) + θ _ L

In[47]:=

LocalSiderealTime[JulianDate[{2003, 3, 9}], ToDegrees[{30, 2, 23}] Degree]

Out[47]=

(108143 °)/3600 + 6.300387486748799` FractionalPart[JulianDate[{2003, 3, 9}]] + ° (1.7 ... 545 + IntegerPart[JulianDate[{2003, 3, 9}]])) (-2451545 + IntegerPart[JulianDate[{2003, 3, 9}]])))

•July

[Graphics:HTMLFiles/index_144.gif]

•June

[Graphics:HTMLFiles/index_145.gif]

•KaBand

[Graphics:HTMLFiles/index_146.gif]

In[48]:=

FrequencyRange[KaBand]/GHz

Out[48]=

{{27, 40}}

•KBand

[Graphics:HTMLFiles/index_149.gif]

In[49]:=

FrequencyRange[KBand]/GHz

Out[49]=

{{18, 27}}

•KelvinToCelsius

[Graphics:HTMLFiles/index_152.gif]

In[50]:=

KelvinToCelsius[k]

Out[50]=

-273.15` + k

•KelvinToFarenheit

[Graphics:HTMLFiles/index_155.gif]

•KilometersToFeet

[Graphics:HTMLFiles/index_156.gif]

Usage message for KilometersToFeet

•KilometersToMeters

[Graphics:HTMLFiles/index_157.gif]

•KilometersToMiles

[Graphics:HTMLFiles/index_158.gif]

In[51]:=

KelvinToFarenheit[k]

Out[51]=

32 + 9/5 (-273.15` + k)

•KilometersToNauticalMiles

[Graphics:HTMLFiles/index_161.gif]

In[52]:=

KilometersToNauticalMiles

Out[52]=

250/463

•KnotsToMetersPerSecond

[Graphics:HTMLFiles/index_164.gif]

In[53]:=

KnotsToMetersPerSecond

Out[53]=

463/900

•KuBand

[Graphics:HTMLFiles/index_167.gif]

In[54]:=

FrequencyRange[KuBand]/GHz

Out[54]=

{{12, 18}}

•LBand

[Graphics:HTMLFiles/index_170.gif]

In[55]:=

FrequencyRange[LBand]/GHz

Out[55]=

{{1, 2}}

•LightSpeed

[Graphics:HTMLFiles/index_173.gif]

In[56]:=

LightSpeed

Out[56]=

299792458

•LocalSiderealTime

[Graphics:HTMLFiles/index_176.gif]

Usage message for LocalSiderealTime

•LPol

[Graphics:HTMLFiles/index_177.gif]

Usage message for LPol

•LPolarization

[Graphics:HTMLFiles/index_178.gif]

Usage message for LPolarization

•LocalSiderealTime

[Graphics:HTMLFiles/index_179.gif]

In[57]:=

LocalSiderealTime[2451545, 30 Degree]

Out[57]=

0.5539663857071446`

This package automatically loads the Mathematica standard add-on package "Miscellaneous`Geodesy`" which has a function to change between the {degrees. minutes, seconds} form of latitude or longitude and the value in degrees.  We then multiply by Degree to get the final result expressed in radians:

In[58]:=

ToDegrees[{30, 2, 23}] Degree // N

Out[58]=

0.5242920591622855`

•March

[Graphics:HTMLFiles/index_184.gif]

•May

[Graphics:HTMLFiles/index_185.gif]

•MetersPerSecondToKnots

[Graphics:HTMLFiles/index_186.gif]

In[59]:=

MetersPerSecondToKnots

Out[59]=

900/463

•MetersToFeet

[Graphics:HTMLFiles/index_189.gif]

In[60]:=

MetersToFeet

Out[60]=

1250/381

•MetersToKilometers

[Graphics:HTMLFiles/index_192.gif]

In[61]:=

MetersToKilometers

Out[61]=

1/1000

•MetersToMiles

[Graphics:HTMLFiles/index_195.gif]

In[62]:=

MetersToMiles

Out[62]=

125/201168

•MetersToNauticalMiles

[Graphics:HTMLFiles/index_198.gif]

In[63]:=

MetersToNauticalMiles

Out[63]=

1/1852

•Mhz

[Graphics:HTMLFiles/index_201.gif]

In[64]:=

Mhz

Out[64]=

1000000

•MHz

[Graphics:HTMLFiles/index_204.gif]

In[65]:=

MHz

Out[65]=

1000000

•MilesToFeet

[Graphics:HTMLFiles/index_207.gif]

Usage message for MilesToFeet

•MilesToKilometers

[Graphics:HTMLFiles/index_208.gif]

In[66]:=

MilesToKilometers

Out[66]=

25146/15625

•MilesToMeters

[Graphics:HTMLFiles/index_211.gif]

In[67]:=

MilesToMeters

Out[67]=

201168/125

•MilesToNauticalMiles

[Graphics:HTMLFiles/index_214.gif]

Usage message for MilesToNauticalMiles

•MillimeterBand

[Graphics:HTMLFiles/index_215.gif]

In[68]:=

FrequencyRange[MillimeterBand]/GHz

Out[68]=

{{110, 300}}

•Months

[Graphics:HTMLFiles/index_218.gif]

In[69]:=

Months[]

Out[69]=

{January, February, March, April, May, June, July, August, September, October, November, December}

•NauticalMilesToFeet

[Graphics:HTMLFiles/index_221.gif]

Usage message for NauticalMilesToFeet

•NauticalMilesToKilometers

[Graphics:HTMLFiles/index_222.gif]

In[70]:=

NauticalMilesToKilometers

Out[70]=

463/250

•NauticalMilesToMeters

[Graphics:HTMLFiles/index_225.gif]

In[71]:=

NauticalMilesToMeters

Out[71]=

1852

•NFromdB

[Graphics:HTMLFiles/index_228.gif]

In[72]:=

NFromdB[3]

Out[72]=

1.9952623149688797`

In[73]:=

NFromdB[db]

Out[73]=

10.`^(0.1` db)

•November

[Graphics:HTMLFiles/index_233.gif]

•NTodB

[Graphics:HTMLFiles/index_234.gif]

In[74]:=

NTodB[10]

Out[74]=

10.`

•October

[Graphics:HTMLFiles/index_237.gif]

•OtherColumnsStyle

[Graphics:HTMLFiles/index_238.gif]

In[75]:=

PackagesAndFunctionsWithOption[OtherColumnsStyle]

Out[75]//DisplayForm=

[Graphics:HTMLFiles/index_240.gif]

•PackageFunctionsWithOption

[Graphics:HTMLFiles/index_241.gif]

In[76]:=

PackageFunctionsWithOption[Propagation, Method]

Out[76]=

{DivergenceFactor, KnifeEdgeDiffractionFourRay, Multipath}

•PackagesAndFunctionsWithOption

[Graphics:HTMLFiles/index_244.gif]

In[77]:=

PackagesAndFunctionsWithOption[Method]

Out[77]//DisplayForm=

[Graphics:HTMLFiles/index_246.gif]

•PointDifference

[Graphics:HTMLFiles/index_247.gif]

In[78]:=

PointDifference[{{x1, y1}, {x2, y2}}]

Out[78]=

{{-x1 + x2, -y1 + y2}}

In[79]:=

PointDifference[{{x1, y1}, {x2, y2}, {x3, y3}}]

Out[79]=

{{-x1 + x2, -y1 + y2}, {-x2 + x3, -y2 + y3}}

•Polarization

[Graphics:HTMLFiles/index_252.gif]

In[80]:=

PackagesAndFunctionsWithOption[Polarization]

Out[80]//DisplayForm=

[Graphics:HTMLFiles/index_254.gif]

•PureSymbolQ

[Graphics:HTMLFiles/index_255.gif]

In[81]:=

Remove[x] ; PureSymbolQ[x]

Out[82]=

True

In[83]:=

Head[x]

Out[83]=

Symbol

In[84]:=

Remove[x, y] ; PureSymbolQ[x + y]

Out[85]=

False

In[86]:=

Head[x + y]

Out[86]=

Plus

•RadarBands

[Graphics:HTMLFiles/index_264.gif]

In[87]:=

RadarBands[]

Out[87]=

{HFBand, RadarVHFBand, VHFBand, RadarUHFBand, UHFBand, RadarLBand, LBand, RadarSBand, SBand, R ... d, RadarKaBand, KaBand, RadarVBand, VBand, RadarWBand, WBand, RadarMillimeterBand, MillimeterBand}

•RadarCBand

[Graphics:HTMLFiles/index_267.gif]

In[88]:=

FrequencyRange[RadarCBand]/GHz

Out[88]=

{{21/4, 237/40}}

•RadarPackages

[Graphics:HTMLFiles/index_270.gif]

Usage message for Radar`Common`RadarPackages

In[89]:=

RadarPackages[]

Out[89]=

{Radar`RulesOfThumb`, Radar`Clutter`, Radar`Antennas`, Radar`WaveForms`, Radar`TroposphericAtt ... adarGraphics`, Radar`Common`, Radar`CrossSections`, Radar`PadeMethod`, Radar`StandardAtmospheres`}

•RadarKaBand

[Graphics:HTMLFiles/index_273.gif]

In[90]:=

FrequencyRange[RadarKaBand]/GHz

Out[90]=

{{167/5, 36}}

•RadarKBand

[Graphics:HTMLFiles/index_276.gif]

In[91]:=

FrequencyRange[RadarKBand]/GHz

Out[91]=

{{481/20, 97/4}}

•RadarKuBand

[Graphics:HTMLFiles/index_279.gif]

In[92]:=

FrequencyRange[RadarKuBand]/GHz

Out[92]=

{{67/5, 14}, {157/10, 177/10}}

•RadarLBand

[Graphics:HTMLFiles/index_282.gif]

In[93]:=

FrequencyRange[RadarLBand]/GHz

Out[93]=

{{243/200, 7/5}}

•RadarMillimeterBand

[Graphics:HTMLFiles/index_285.gif]

In[94]:=

FrequencyRange[RadarMillimeterBand]/GHz

Out[94]=

{{126, 142}, {144, 149}, {231, 235}, {238, 248}}

•RadarPackageFunctions

[Graphics:HTMLFiles/index_288.gif]

•RadarSBand

[Graphics:HTMLFiles/index_289.gif]

In[95]:=

FrequencyRange[RadarSBand]/GHz

Out[95]=

{{23/10, 5/2}, {27/10, 37/10}}

•RadarUHFBand

[Graphics:HTMLFiles/index_292.gif]

In[96]:=

FrequencyRange[RadarUHFBand]/GHz

Out[96]=

{{21/50, 9/20}, {89/100, 471/500}}

•RadarVBand

[Graphics:HTMLFiles/index_295.gif]

In[97]:=

FrequencyRange[RadarVBand]/GHz

Out[97]=

{{59, 64}}

•RadarVHFBand

[Graphics:HTMLFiles/index_298.gif]

In[98]:=

FrequencyRange[RadarVHFBand]/GHz

Out[98]=

{{69/500, 18/125}, {27/125, 9/40}}

•RadarWBand

[Graphics:HTMLFiles/index_301.gif]

In[99]:=

FrequencyRange[RadarWBand]/GHz

Out[99]=

{{76, 81}, {92, 100}}

•RadarXBand

[Graphics:HTMLFiles/index_304.gif]

In[100]:=

FrequencyRange[RadarXBand]/GHz

Out[100]=

{{17/2, 267/25}}

•RPol

[Graphics:HTMLFiles/index_307.gif]

Usage message for RPol

•RPolarization

[Graphics:HTMLFiles/index_308.gif]

Usage message for RPolarization

•SBand

[Graphics:HTMLFiles/index_309.gif]

In[101]:=

FrequencyRange[SBand]/GHz

Out[101]=

{{2, 4}}

•September

[Graphics:HTMLFiles/index_312.gif]

•SetAverageEarthRadius

[Graphics:HTMLFiles/index_313.gif]

In[102]:=

$AverageEarthRadius

Out[102]=

31855043857/5000

In[103]:=

$AverageEarthRadius // N

Out[103]=

6.3710087714`*^6

In[104]:=

SetAverageEarthRadius[500]

Out[104]=

{$AverageEarthRadius}

In[105]:=

$AverageEarthRadius

Out[105]=

500

Of course this is not something we want to do, so let's fix it

In[106]:=

SetAverageEarthRadius[31855043857/5000]

Out[106]=

{$AverageEarthRadius}

In[107]:=

$AverageEarthRadius

Out[107]=

31855043857/5000

•SetdBOption

[Graphics:HTMLFiles/index_326.gif]

•SetEarthRadiusScale

[Graphics:HTMLFiles/index_327.gif]

See the example for $EarthRadiusScale below.

•SolarConstant

[Graphics:HTMLFiles/index_328.gif]

Usage message for SolarConstant

•SolarEquatorialRadius

[Graphics:HTMLFiles/index_329.gif]

Usage message for SolarEquatorialRadius

•SolarLuminosity

[Graphics:HTMLFiles/index_330.gif]

Usage message for SolarLuminosity

•SpecialPadeq

[Graphics:HTMLFiles/index_331.gif]

•SpecialPadeq$

[Graphics:HTMLFiles/index_332.gif]

•SphereRadius

[Graphics:HTMLFiles/index_333.gif]

In[108]:=

PackagesAndFunctionsWithOption[SphereRadius]

Out[108]//DisplayForm=

[Graphics:HTMLFiles/index_335.gif]

•TabularReport

[Graphics:HTMLFiles/index_336.gif]

In[109]:=

TabularReport["The Report", {"a", "b", "c"}, {{1, 2, 3}, {a, b, c}, {aa, bb, cc}}, 12]

[Graphics:HTMLFiles/index_338.gif]

In[110]:=

horizon43 = N[HorizonDistance /@ (10 Range[5])] MetersToKilometers

Out[110]=

{13.034316267868984`, 18.4332978007013`, 22.57607587063173`, 26.068594175624078`, 29.145560031348307`}

In[111]:=

horizon1 = N[HorizonDistance[#, EarthRadiusScale -> 1] & /@ (10 Range[5])] MetersToKilometers

Out[111]=

{11.288047163329736`, 15.963698950779522`, 19.551445631718064`, 22.576050032271368`, 25.240774760320594`}

In[112]:=

TabularReport["Horizon Distance\n   Comparison", {"Transmitter \ ... , "4/3 Earth", "1 Earth"}, Transpose[{10 Range[5] , horizon43, horizon1}], 12]

[Graphics:HTMLFiles/index_344.gif]

•TemperatureConversionCalculator

[Graphics:HTMLFiles/index_345.gif]

Usage message for TemperatureConversionCalculator

In[130]:=

TemperatureConversionCalculator[]

Out[130]=

NotebookObject[<< Temperature Conversion Calculator >>]

[Graphics:HTMLFiles/index_348.gif]

•TodB

[Graphics:HTMLFiles/index_349.gif]

In[113]:=

TodB[μ]

Out[113]=

(10 Log[μ])/Log[10]

•TopStyle

[Graphics:HTMLFiles/index_352.gif]

In[114]:=

PackagesAndFunctionsWithOption[TopStyle]

Out[114]//DisplayForm=

[Graphics:HTMLFiles/index_354.gif]

•UHFBand

[Graphics:HTMLFiles/index_355.gif]

In[115]:=

FrequencyRange[UHFBand]/GHz

Out[115]=

{{3/10, 1}}

•VBand

[Graphics:HTMLFiles/index_358.gif]

In[116]:=

FrequencyRange[VBand]/GHz

Out[116]=

{{40, 75}}

•VHFBand

[Graphics:HTMLFiles/index_361.gif]

In[117]:=

FrequencyRange[VHFBand]/GHz

Out[117]=

{{3/100, 3/10}}

•VPolarization

[Graphics:HTMLFiles/index_364.gif]

•VPol

[Graphics:HTMLFiles/index_365.gif]

•Wavelength

[Graphics:HTMLFiles/index_366.gif]

In[118]:=

Wavelength[1 GHz] // N

Out[118]=

0.299792458`

•WBand

[Graphics:HTMLFiles/index_369.gif]

In[119]:=

FrequencyRange[WBand]/GHz

Out[119]=

{{75, 110}}

•XBand

[Graphics:HTMLFiles/index_372.gif]

In[120]:=

FrequencyRange[XBand]/GHz

Out[120]=

{{8, 12}}

•XPointDifference

[Graphics:HTMLFiles/index_375.gif]

In[121]:=

XPointDifference[{{x1, y1}, {x2, y2}}]

Out[121]=

{-x1 + x2}

•YPointDifference

[Graphics:HTMLFiles/index_378.gif]

In[122]:=

YPointDifference[{{x1, y1}, {x2, y2}}]

Out[122]=

{-y1 + y2}

•$AverageEarthRadius

[Graphics:HTMLFiles/index_381.gif]

In[123]:=

$AverageEarthRadius

Out[123]=

31855043857/5000

•$dB

[Graphics:HTMLFiles/index_384.gif]

In[124]:=

$dB

Out[124]=

True

•$EarthRadiusScale

[Graphics:HTMLFiles/index_387.gif]

In[125]:=

$EarthRadiusScale

Out[125]=

4/3

In[126]:=

SetEarthRadiusScale[4/3 + 1/100]

Out[126]=

403/300

Return it to its default value:

In[127]:=

SetEarthRadiusScale[4/3]

Out[127]=

4/3

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