•Update for iOS26
•Fixed bugs in BASIC debugger
•Long tap history to copy to paste buffer

• Improved accuracy of RREF function
• Updated for iOS changes

• Fixed problem with Table view display

• Update for iOS17
• Added statistics wizards
• Fixed issue with degree mark
• Fixed bug in matrix ref
• Fixed use of VARS:COLOR in DRAW functions

• Update for iOS15.3
• Updated test mode
• Fixed stat freq list error
• Table now displays imaginary as NAN

• Updated test mode
• Updates for iOS 15.2
• Fixed User program list

• Updates for iOS 15
• Updated periodic table
• Fixed log of negative number
• Fixed negative n/d
• Improved chi squared test accuracy

For duration of the Coronavirus pandemic, GraphNCalc83 is being offered for free to support students learning from home. All features enabled, no ads, no personal tracking. FREE!
• Fixed dark mode issues
• Fixed display of imaginary numbers
• Added PlySmlt to APPS
• Added PRGM sorting options
• Added Testing Mode (touch ? MODE and scroll to section \"---Test Taking---\" to learn more)

•Added significant figures calculation
•Added polynomial root solver
•Added ODE solver
•Added BASIC programs: Fibonacci, NextPrime, PolynomialZeros, SignificantFigures, ODEsolver, SlopeFieldGraph
•Added sort by topic for BASIC programs menu
•Added iOS13 dark mode

• Added f(XY) graphing mode
• Added SI Prefix conversions
• Added Yt column in PAR table view
• Added custom colors for background, axes, grid
• Added cut/copy/paste in BASIC editor
• Added BASIC programs for statistics, algebra, calculus
• Improved BASIC program importing
• Fixed blurry help pages

•Fixed u nd fraction editing bug
•Fixed getKey function
•Fixed copying of a previous entry with a negative exponent

• Improved nCr and nPr display
• Corrected input of tvm_ functions
• Corrected MODE:Answer settings

•Fixed copying fractions from history error
•Touch ? key then the MODE key to learn about new display options

•Added n/d to key next to ALPHA key
•Added formatting for nCr and nPr
•Added optional base parameter to log(

• Added math typesetting- enter problems just like your textbook
• Change display size with A+, A- on arrow keys
• Added fraction display controls to MODE view
• iOS 11 and iPhoneX updates
• Various bug fixes

•Added inequality function graphing
•Added dot mode for seq graphing
•Corrected auto entry
•Improved help screen formatting
•Keyboard sound preference is now saved
•regEqu generation for small coefficients improved
•Improved rref(
•Fixed labels in triangle app

• Update for iOS9.2
• Added iPad slide over and split views
• Added π x-axis labels for trig zoom view
• Corrected negate / exponentiation precedence
• Corrected negate of imaginary values
• Graph of T-Test for negative values fixed
• Recall of scientific notation values from history fixed

• Update for iOS9
• Relaxed domain checking for binomialcdf(
• Expanded range of nPr and nCr
• Fixed various iPad crashes
• Fixed spurious error report in χ²-Test
• Expanded info pages for stat functions
• Changed dayOfWk( to return 7 instead of 0 for Saturday

•Fixed iPad crash with ZOOM and CALC
•Fixed arrow keys bug in CALC panel
•Added MEM menu
•Moved CONV to DEL key
•Expanded ? help for trig, log and other functions
•Extended range of ^ function
•Fixed DMS with seconds calculation
•Added .8xx file import for BASIC and data files
•List names can now start with θ
•INPUT now accepts named lists
•Fixed bug in randM(

• Updated for iOS 8.1
• Corrected fraction display of values < -1
• Added automatic transition from Stat list editor to HOME
• Fixed bug in histogram plots

•Updated for iOS8
•Added larger graphics for iPhone6, iPhone6 Plus
•Improved bubble help
•Improved CONV to use Ans
•Improved various computations