PHP Science Labs Module Contents

A quick listing of the current contents of the PHPSCILABS function module(s).

 PHPSCILABS.php

 Revised:
 2021 June 21  10:54:10 AM  Monday


 MODULE CONTENTS LISTING:
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 34 constants are defined in this module.

 CLIGHT = "299792458"

 G_STD = "9.80665"

 G_UNI = "0.000000000066742"

 M_PER_A = "0.0000000001"

 M_PER_NM = "0.000000001"

 M_PER_UM = "0.000001"

 M_PER_MM = "0.001"

 M_PER_CM = "0.01"

 M_PER_IN = "0.0254"

 M_PER_FT = "0.3048"

 M_PER_YD = "0.9144"

 M_PER_M = "1"

 M_PER_KM = "1000"

 M_PER_MI = "1609.344"

 M_PER_NMI = "1852"

 M_PER_LS = "299792458"

 KM_PER_NMI = "1.852"

 KM_PER_MI = "1.609344"

 M_PER_AU = "149597870700"

 KM_PER_AU = "149597870.700"

 MI_PER_AU = "92955807.273"

 M_PER_LY = "9460730472580800"

 M_PER_PC = "30856775813057289.532915512381557"

 AU_PER_LY = "63241.0770880709446742"

 AU_PER_PC = "206264.8062470963551565"

 LY_PER_PC = "3.2615637769712137"

 LT_1AU = "0.00577551830441213"

 KG_PER_OZ = "0.028349523125"

 KG_PER_LB = "0.45959237"

 G_PER_OZ = "28.349523125"

 N_PER_LB = "4.4482216152605"

 S_PER_JYR = "31557600"

 S_PER_DAY = "86400"

 S_PER_GYR = "31556952"


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 88 functions are defined in this module.

 Strip_WSpace ($TextString)

 Swap (&$var1, &$var2)

 Is_Not_Numeric ($TextString)

 Is_Vowel ($char)

 Is_Consonant ($char)

 Is_Digit ($char)

 Sort_Table ($TableTextString)

 LR_X_Pad ($TextString, $LorRStr='L', $XPadChar=' ', $XPadCount=0)

 str_rotate($TextString, $RotNumChars=1)

 L_Pad_Text ($TextString, $PadLen=0, $PadChar=' ')

 R_Pad_Text ($TextString, $PadLen=0, $PadChar=' ')

 Rand_Digits_Base_B ($NumDigits=1, $BaseB=10, $LZeroSuppressed=FALSE)

 Rand_Int_Enc_Date()

 Rand_Date_String()

 Rand_Time_String()

 Rand_Date_Time_String()

 Rand_Decimal($NumDigits=1, $RandSignFlag=FALSE)

 Sind($AngDMS)

 Cosd($AngDMS)

 Tand($AngDMS)

 ASind($x)

 ACosd($x)

 ATand ($x)

 ATand2 ($y, $x)

 Temp_to_Temp ($FromTempStr, $ToScaleStr)

 Length_to_Length ($LengthAndUnits, $ToUnits)

 bcNth_Root_Of_X ($N, $X, $decimals=16)

 bcN_Factorial ($N=0)

 bcPerm_N_R ($IntNStr, $IntRStr)

 bcComb_N_R ($N, $R)

 bcGCD ($IntAStr, $IntBStr)

 bcAdd_Frac ($A_B, $C_D)

 bcSub_Frac ($A_B, $C_D)

 bcMul_Frac ($A_B, $C_D)

 bcDiv_Frac ($A_B, $C_D)

 bcReduce_Frac ($A_B)

 bcAdd_Num_String ($StringOfNumbers, $RetModeStr="Dec", $decimals=16)

 bcMul_Num_String ($StringOfNumbers, $RetModeStr="Dec", $decimals=16)

 bcBase10_To_BaseB ($X10, $BaseB, $TruncationLimit=0)

 bcX_Base_B_To_Base_10 ($BaseBNumStr, $BaseB)

 bcIs_Base_B ($XBaseBString, $BaseB)

 bcBaseB_Int_To_Base10 ($XBaseBString, $BaseB)

 bcBase10_Int_To_BaseB ($X10IntStr, $BaseB)

 bcDec_to_Int_Frac ($FractionString)

 LaGrange_Interp ($XYDataTable, $xArg)

 Swap_XY_Data_Columns ($XYDataStr)

 Extremum_5 ($DataTableStr)

 Interp_Hours ($HoursInterpTableStr, $JDTTArg)

 Std_Deviation ($NumericDataString, $SampleMode=1)

 Std_Dev_Stats ($NumericDataString)

 Compass_Symbol ($AzimDeg, $ZeroModeSymbol='N')

 Delta_T ($yyyymnOrJDTT, $RetMode=' ')

 Delta_Eps ($JDTT)

 Delta_Psi($JDTT)

 dPsi ($JDTT)

 Delta_Equinox($JDTT)

 Equ_to_Ecl_Coords($JDTT, $RAHrs, $DeclDeg)

 Mean_Eps ($JDTT)

 Mean_Sid_Time ($JDTT, $LonDeg=0)

 Dist_Between_Coords ($radius, $Lat1,$Lon1, $Lat2,$Lon2)

 Geodesic_Dist ($lon1, $lat1, $lon2, $lat2, $KmMi='km')

 Ang_Diam_at_Dist ($radius, $distance)

 Deg_Mod_360 ($DegStr)

 Azim_Alt ($JDTT, $RAHrs, $DeclDeg, $LongitudeDeg=0, $LatitudeDeg=0)

 DMS_to_Deg ($DMSstr)

 Deg_to_DMS ($AngDeg, $ssDecimals=0, $PosSignSymbol='', $SymbolsMode='d')

 Hours_to_HMS ($hours, $ssDecimals=0, $PosSignSymbol='', $SymbolsMode='h')

 HMS_to_Hours ($hhmmss)

 Round_HMS ($hhmmss, $HMSMode='hms')

 DTZ_to_JD ($DateTimeZoneString)

 DTZ_to_JDTT ($DateTimeZoneString)

 Date_Time_Zone_to_JDTT ($DateTimeZoneString)

 JD_To_Date_Time_String ($JD)

 JD_Z_to_DT ($JDate, $TZhhmm='+00:00', $DateMode=1)

 Nth_DoW_of_mY ($n, $DoW, $m, $y)

 Last_DoW_of_mY ($DoW, $mn, $yyyy)

 JD_to_Y_Mmm_dn_DoW ($JD)

 Num_HMS_Trans ($HHMMSS)

 Check_Date($yyyymmdd)

 Check_Time($hhmmss)

 Check_Lat($LatStr)

 Check_Lon($LonStr)

 Interp_Lon ($PhaseInterpTable, $JDTTArg)

 Interp_Angle ($PhaseInterpTable, $JDTTArg)

 Text_Area ($TextBlock, $TxtRows='', $TxtCols=81, $ColorStr='', $BGColorStr='')

 Text_Area_PHP ($TextBlock, $TxtRows='', $TxtCols=81, $ColorStr='', $BGColorStr='')

 USA_DST ($year)

 EU_ST ($year)