Example Complex log2 002

 

 

Description

These examples use the log2 function to compute the log of a number using base 2.

 

Details

(setq X (new Complex: 4.0 0.0)) Returns: #<Complex 123456>

The result of the log2 function is:

(log2 X) Returns: #c2.0
(setq X (new Complex: 0.0 -4.0)) Returns: #<Complex 234567>

The result of the log2 function is:

(log2 X) Returns: #c2.0-2.266i
(setq X (new Complex: 4.0 4.0)) Returns: #<Complex 345678>

The result of the log2 function is:

(log2 X) Returns: #c2.5+1.133i

Notes and Hints

The logarithm is the inverse of expt. For example, for Value given by (setq Value (expt 2.71828 power)), (log Value) returns power.

 

Related Examples

Here are examples of the log2 function at work.

Complex log2 002 Number log2 001

 

Function Links

Here is the link to the current function used in this example.

log2

Here are a number of links to other related functions.

log(#void) logbase(#void) log10(#void) expt(#void)

 

Argument Types

Here are the links to the data types of the arguments used in this example.

Complex Integer

Here are a number of links to examples having similar argument types.

BitVector compare 018 BitVector findBlock 001 BitVector freeBlock 001 BitVector inside 007
BitVector isBitVector 001 BitVector isMember 008 BitVector isObject 012 BitVector length 013
BitVector member 008 BitVector ref 027 BitVector resize 010 BitVector sizeof 019
BitVector vectorFill 007 Boolean bcompareEQ 001 Boolean bcompareGE 001 Boolean bcompareGT 001
Boolean bcompareLE 001 Boolean bcompareLT 001 Boolean bcompareNE 001 Boolean boolean 001
Boolean compare 009 Boolean isBoolean 001 Boolean sizeof 009 ByteVector isByteVector 001
ByteVector isObject 013 ByteVector sizeof 020 Character cadd 001 Character ccompareEQ 001
Character ccompareGE 001 Character ccompareGT 001 Character ccompareLE 001 Character ccompareLT 001
Character ccompareNE 001 Character cdiv 001 Character character 001 Character cmod 001
Character cmul 001 Character compare 010 Character csub 001 Character isCharacter 001
Character sizeof 010 Complex + 001 Complex - 002 Complex - 003
Complex / 003 Complex abs 002 Complex append 011 Complex argument 001
Complex compare 021 Complex comparison 021 Complex conjugate 001 Complex cos 002
Complex exp 002 Complex expt 002 Complex imaginary 001 Complex isComplex 001
Complex log 002 Complex log10 002 Complex log2 002 Complex logbase 002
Complex real 001 Complex sin 002 Complex sqrt 002 Complex string 004
Complex tan 002 Context globalBinding 001 CpxVector avg 002 CpxVector binaryInsert 008
CpxVector binarySearch 008 CpxVector compare 020 CpxVector compareEQ 020 CpxVector compareGE 020
CpxVector compareGT 020 CpxVector compareLE 020 CpxVector compareLT 020 CpxVector compareNE 020
Date compare 012 Date date 001 Date day 001 Date days360 001
Date hour 001 Date minute 001 Date month 001 Date second 001
Date sizeof 012 Date time 001 Date time 002 Date year 001
Dictionary compare 004 Dictionary count 002 Dictionary delete 003 Dictionary delete 004
Dictionary insert 002 Dictionary isBound 002 Dictionary isDictionary 001 Dictionary isObject 004
Dictionary length 005 Dictionary member 002 Dictionary new 004 Dictionary ref 007
Dictionary ref 008 Dictionary ref 009 Dictionary refAttributes 002 Dictionary refValues 002
Dictionary resize 002 Dictionary setq 007 Dictionary setq 008 Dictionary sizeof 004
Dictionary sort 003 Directory compare 005 Directory count 003 Directory delete 005
Directory delete 006 Directory insert 003 Directory inside 003 Directory isBound 003
Directory isObject 005 Directory length 006 Directory new 005 Directory new 006
Directory ref 011 Directory ref 012 Directory refAttributes 003 Directory refValues 003
Directory resize 003 Directory setq 010 Directory sizeof 005 FltVector binaryInsert 004
FltVector compare 014 FltVector delete 009 FltVector insert 005 FltVector isFloatVector 001
FltVector isObject 007 FltVector length 008 FltVector ref 022 FltVector resize 006
FltVector sizeof 014 FltVector uniqueInsert 004 FltVector vectorFill 003 Function compare 013
Function sizeof 013 IntVector binaryInsert 005 IntVector compare 015 IntVector delete 010
IntVector insert 006 IntVector inside 005 IntVector isIntegerVector 001 IntVector isMember 005
IntVector isObject 008 IntVector length 009 IntVector member 005 IntVector ref 023
IntVector resize 007 IntVector sizeof 015 IntVector uniqueInsert 005 IntVector vectorFill 004
Integer binaryNot 001 Integer bitwiseNot 001 Integer fact 001 Integer gcd 001
Integer iadd 001 Integer icompareGE 001 Integer icompareGT 001 Integer icompareLE 001
Integer icompareLT 001 Integer icompareNE 001 Integer idiv 001 Integer imod 001
Integer imul 001 Integer integer 001 Integer isub 001 Integer lcm 001
Lambda balance 001 Lambda globalBinding 001 Lambda ref 017 List count 007
List count 008 List length 015 List sizeof 022 Matrix binaryInsert 004
Matrix binaryInsert 005 Matrix compare 007 Matrix count 005 Matrix delete 009
Matrix insert 005 Matrix inside 005 Matrix isMatrix 001 Matrix isMember 005
Matrix isNumberMatrix 001 Matrix isObject 007 Matrix length 008 Matrix makeGaussianMatrix 001
Matrix makeGramMatrix 001 Matrix matrixGaussianEliminate 001 Matrix matrixGaussianSubstitute 001 Matrix member 005
Matrix rank 001 Matrix ref 015 Matrix ref 016 Matrix resize 005
Matrix sizeof 007 Matrix uniqueInsert 004 Matrix vectorFill 002 NumMatrix binaryInsert 007
NumMatrix compare 023 NumMatrix count 009 NumMatrix delete 014 NumMatrix insert 009
NumMatrix inside 009 NumMatrix isMember 010 NumMatrix isNumberMatrix 001 NumMatrix isObject 014
NumMatrix length 017 NumMatrix makeGaussianMatrix 001 NumMatrix makeGramMatrix 001 NumMatrix matrixGaussianEliminate 001
NumMatrix matrixGaussianSubstitute 001 NumMatrix member 009 NumMatrix rank 002 NumMatrix ref 035
NumMatrix resize 011 NumMatrix sizeof 028 NumMatrix uniqueInsert 005 NumMatrix vectorFill 008
NumVector binaryInsert 006 NumVector compare 016 NumVector delete 011 NumVector insert 007
NumVector inside 006 NumVector isMember 006 NumVector isNumberVector 001 NumVector isObject 009
NumVector length 010 NumVector member 006 NumVector objectToNumVector 001 NumVector ref 024
NumVector resize 008 NumVector sizeof 016 NumVector uniqueInsert 006 NumVector vectorFill 005
Number asin 001 Number atan 001 Number avg 001 Number compare 011
Number cos 001 Number cosh 001 Number deg 001 Number exp 001
Number floor 001 Number kurtosis 001 Number log 001 Number log10 001
Number log2 001 Number logbase 001 Number max 001 Number median 001
Number min 001 Number mod 001 Number modi 001 Number nadd 001
Number ncompareGE 001 Number ncompareGT 001 Number ncompareLE 001 Number ncompareLT 001
Number ndiv 001 Number nmod 001 Number nmul 001 Number nsub 001
Number number 001 Number pi 001 Number product 001 Number rad 001
Number random 001 Number randomize 001 Number range 001 Number round 001
Number sign 001 Number sin 001 Number sinh 001 Number sizeof 011
Number skew 001 Number sqrt 001 Number srandom 001 Number stdev 001
Number stdevp 001 Number sumsqr 001 Number tan 001 Number tanh 001
Number var 001 Number varp 001 ObjVector compare 017 ObjVector delete 012
ObjVector insert 008 ObjVector isMember 007 ObjVector isObject 010 ObjVector isObjectVector 001
ObjVector length 011 ObjVector member 007 ObjVector ref 025 ObjVector resize 009
ObjVector sizeof 017 ObjVector uniqueInsert 007 ObjVector vectorFill 006 ObjectRepository delete 013
Pair compare 019 Pair compareEQ 019 Pair compareGE 019 Pair compareGT 019
Pair compareLE 019 Pair compareLT 019 Pair compareNE 019 Pair comparison 019
Pair count 006 Pair length 014 Pair sizeof 021 PcodeVector isObject 011
PcodeVector isPcodeVector 001 PcodeVector length 012 PcodeVector ref 026 PcodeVector sizeof 018
ShortVector binaryInsert 006 ShortVector compare 016 ShortVector delete 011 ShortVector insert 007
ShortVector inside 006 ShortVector isMember 006 ShortVector isObject 009 ShortVector length 010
ShortVector member 006 ShortVector ref 024 ShortVector resize 008 ShortVector sizeof 016
ShortVector uniqueInsert 007 ShortVector vectorFill 005 String code 001 String compare 001
String compareEQ 001 String compareGE 001 String compareGT 001 String compareLE 001
String compareLT 001 String compareNE 001 String find 001 String find 002
String hashString 001 String isChar 001 String isCharAlphabetic 001 String isCharAlphanumeric 001
String isCharLowercase 001 String isCharName 001 String isCharNumeric 001 String isCharUppercase 001
String isCharWhitespace 001 String isEqual 001 String isEqual 002 String isObject 001
String isString 001 String isText 001 String isType 001 String isType 002
String isType 003 String left 001 String length 001 String length 002
String mid 001 String new 001 String parse 001 String ref 001
String ref 002 String replace 001 String rept 001 String right 001
String sizeof 001 String string 001 String string 002 String string 003
String stringCiEQ 001 String stringCiGE 001 String stringCiGT 001 String stringCiLE 001
String stringCiLT 001 String stringCiNE 001 String substitute 001 String substitute 002
String substring 001 String substring 002 String substringCiEQ 001 String substringCiGE 001
String substringCiGT 001 String substringCiLE 001 String substringCiLT 001 String substringCiNE 001
String text 001 String type 001 Structure apply 001 Structure binaryInsert 001
Structure binarySearch 001 Structure compareGE 003 Structure compareGT 003 Structure compareLE 003
Structure compareLT 003 Structure compareNE 003 Structure count 001 Structure defstruct 001
Structure delete 001 Structure insert 001 Structure inside 001 Structure isBound 001
Structure isObject 003 Structure length 004 Structure member 001 Structure new 003
Structure ref 004 Structure ref 006 Structure refAttributes 001 Structure refValues 001
Structure resize 001 Structure setq 004 Structure setq 005 Structure setq 006
Structure sizeof 003 Structure uniqueInsert 001 Structure uniqueInsert 002 Symbol compare 002
Symbol compareEQ 002 Symbol compareGE 002 Symbol compareGT 002 Symbol compareLE 002
Symbol compareLT 002 Symbol compareNE 002 Symbol hashString 002 Symbol isCharName 002
Symbol isCharNumeric 002 Symbol isObject 002 Symbol isSymbol 001 Symbol isType 004
Symbol length 003 Symbol new 002 Symbol sizeof 002 Symbol type 002
Vector binaryInsert 002 Vector binaryInsert 003 Vector compare 006 Vector count 004
Vector delete 007 Vector delete 008 Vector insert 004 Vector inside 004
Vector isMember 004 Vector isObject 006 Vector isVector 001 Vector length 007
Vector member 004 Vector objectToVector 001 Vector ref 013 Vector ref 014
Vector refAttributes 004 Vector refValues 004 Vector resize 004 Vector setBlock 001
Vector sizeof 006 Vector uniqueInsert 003 Vector vectorFill 001 Void compare 008
Void ref 017 Void sizeof 008 substringEQ 001 substringGE 001
substringGT 001 substringLE 001 substringLT 001 substringNE 001

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