Khaf

Khaf (v.0.5.1) is a stable version of RPN Calculator (now Papaj). Its release date is March 21, 2021. It is named after the eleventh letter of Hebrew alphabet – khaf (כ).

Details and features

• Name: Khaf
• Version Code: 0.5.1
• Version Type: Generation 3 build
• Release Date: March 21, 2021
• Stable precedessor: Yod (v.0.5.0)
• Stable successor: Lamed (v.0.5.2)
• Language: FreePascal
• Lines of code: 9880
• Number of functions: 419 + user-defined ones
• Maximum number of instructions: de facto no limit (depends how many you can put in AnsiString, which has limit of either 2,147,483,647 (32 bit) or 9,223,372,036,854,775,807 chars (64 bit))
• Number of entity types: 9 (10 with quasitypes)
• Number of packages: 6
• Tested on:
  • systems: Windows (Win2000, Win7, Win8.1, Win10), Linux (Ubuntu 18-20, Debian 8-9, Manjaro 20.2)
  • architectures: i386/x86 (32 bit), amd64/x64 (64 bit)

Code and binaries

• You can download the binaries/executables of Khaf here.
• You can find its source code here.

List of changes

v.0.5.1.0 – the first release of March 21, 2021

• Array functions:
  • crush
  • destroy
  • filter
  • left, right, cutLeft, cutRight, cutBothSides, between, subarray
  • map
  • reduce, reduceFromFirst
  • reduceRight, reduceRightFromLast
  • reduceMode
  • join
  • split, splitByExpression
  • weave, unweave
  • crushBy
  • getTail, getHead
• String functions:
  • cutLeft, cutRight, cutBothSides
  • upper, lower, uplower
  • getAt, setAt, compare
  • join (alias for concat)
• Vanilla functions:
  • frontrem
• Math functions:
  • isNatural
  • cbrt
  • log2 / lbin
  • log10 / ldec
  • log16 / lhex
  • gamma, gammaln
  • Gamma distribution functions – funcGamma, distGamma, randomGamma, genGamma
  • Chi-squared distribution functions – funcChiSq, distChiSq, randomChiSq, genChiSq
  • Erlang distribution functions – funcErlang, distErlang, randomErlang, genErlang
  • Student's T distribution functions – funcT, distT, randomT, genT
• for-loops
  • for ( item : Array ) { }
• Syntax changes
  • String.run -> String.eval
• New variable engine with scopes
• Global variables
• Fix the bugs and faults
• Fix elif bug
• Directive @stringmode and @stringstart
• Strings are zero-based default (i.e. the first char has index of 0)
• Strings are C-like evaluated with \ ASCII escape codes by default
• mod and div for larger and real numbers
• fix trunc and round problems
• fix Math.isInteger
• fix conflicts between Array and String functions with common names (e.g. Array.split vs String.split)
• fix ftrunc for small integers
• fix rounding numbers (to make it mathematically correct)
• fix cmod and cdiv
• optimize Math.isPrime
• fix Console.textColor for Unix systems
• Unify behavior of Array.setAt and String.setAt
• Introduction of exclamations at Array functions of setAt, getAt, push, pop, shift, getTail, getHead, pushAt, popAt
• New DateTime entity type
• Date/Time management – Date package
  • Date.toDateTime
  • Date.toTimestamp
  • Date.now, Date.today, Date.yesterday, Date.tomorrow, unixEpoch
  • Date.truncDate, Date.truncTime
  • Date.getYear, Date.getMonth, Date.getDay
  • Date.getHour, Date.getHour24, Date.getHour12, Date.getMinute, Date.getSecond, Date.getMillisecond
  • Date.getWeekDay, Date.getYearDay
  • getMonthWeek, getYearWeek
  • Date.setYear, Date.setMonth, Date.setDay
  • Date.setHour, Date.setMinute, Date.setSecond, Date.setMillisecond
  • Date.addYear, Date.addMonth, Date.addDay
  • Date.addHour, Date.addMinute, Date.addSecond, Date.addMillisecond
  • Date.isPM
  • Date.isLeapYear
  • Date.isInLeapYear
  • diffYear, diffMonth, diffWeek, diffDay
  • diffHour, diffMinute, diffSecond, diffMillisecond
  • spanYear, spanMonth, spanWeek, spanDay
  • spanHour, spanMinute, spanSecond,spanMillisecond
  • format
  • compare, compareDate, compareTime
• GUI load/save files
• GUI resizable window

v.0.5.1.1 – update of April 15, 2021

• fix T distribution functions
• add new functions of Math.genDivisors, Math.genNaturalDivisors, Math.divides

v.0.5.1.2 – update of April 18, 2021

• fix elif conditional bug
• introduction of parametrized functions, e.g. function ( x y ) { x y * sqrt }
• optimize Array.map, Array.reduce
• fix minor function bugs
• Vanilla function of frac
• Math functions: cub, inv, countNaturalDivisors, sumNaturalDivisors, funcTau, funcSigma, funcMobius, funcEuler/funcPhi

The features moved to the next stable version

• callWhile, callFor, callUntil
• Negative index of a table/string as its tail
• Student's T test