Updates to Infinite Algebra 2

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Included in version 2.70.06 released 1/5/2023:

  • Fixed: Choices could appear incorrectly

Included in version 2.70.05 released 12/21/2022:

  • Fixed: Continuous Exponential Growth and Decay Word Problems - Could generate an incorrect answer

Included in version 2.70 released 7/8/2022:

  • New: Add preferences for Metric/Imperial units
  • New: Add preference to “Prefer x“ as the variable letter
  • New topic: Discrete Relations
  • New topic: Continuous Relations
  • New topic: Evaluating and Graphing Functions
  • New topic: Direct and Inverse Variation
  • New topic: Continuous Exponential Growth and Decay
  • Improved: UI, security, and stability with updated libraries
  • Fixed: Properties of Exponents – Choices could be equivalent
  • Fixed: Properties of Logarithms – Choices could be equivalent
  • Fixed: Solving Exponential Equations With Logarithms – Choices could be equivalent
  • Fixed: Geometric Series – Choices could be equivalent

Included in version 2.62 released 2/8/2022:

  • New: Print questions from Presentation View
  • New Topic: Discrete Exponential Growth and Decay Word Problems
  • Improved: UI, security, and stability with updated framework and libraries
  • Improved: [Mac] Dark mode
  • Fixed: [Windows] - Detached topic list does not close when application is closed
  • Fixed: Probability Mutually Exclusive Word Problems - mutually exclusive case given when inappropriate

Included in version 2.61.03 released 9/10/2021:

  • Improved: Minor UI improvements
  • Fixed: Law of Cosines - Crash when opening topic
  • Fixed: [Windows] Unable to change page layout to landscape
  • Fixed: [Windows] Error 'Unable to load platform plugin'

Included in version 2.61 released 8/27/2021:

  • Fixed: Preferences page for Kuta Works
  • Improved: Security and stability with updated networking libraries

Included in version 2.60 released 8/19/2021:

  • Improved: UI, security, and stability with updated framework and libraries
  • Improved: Site licenses check expiration date more frequently
  • Fixed: Combinatoric Word Problems - Values could overflow
  • Fixed: Properties of Exponents - Answer might not be fully simplified
  • Fixed: Properties of Logs - Possible to have duplicate choices
  • Fixed: Radical Equations - Option to mix radicals and rational exponents had no effect

Included in version 2.52 released 6/14/2019:

  • New: Scramble questions by directions
  • New: Scramble all questions in assignment
  • New: Consolidate question sets with identical options
  • New: Regroup question sets by directions
  • New: Kuta Works - Create a two semester course
  • New: Kuta Works - Clone assignments from a previous course into a new one
  • Fixed: Presentation View - Arrow keys could change zoom at start/end of assignment
  • Fixed: Tight Layout - Directions could be cramped for no reason
  • Fixed: Inverse Trig - Angles limited for tan(x)
  • Fixed: Inverse Trig - Errors in UI logic

Included in version 2.50 released 4/12/2019:

  • New: Kuta Works - Option to hide answers and results from students until after due date
  • New: Kuta Works - Option to control how long choices are hidden
  • Improved: Options windows appear at a better initial size
  • Improved: Window controls shown at their native size and spacing
  • Improved: Network proxy configuration window
  • Improved: License activation process
  • Fixed: Presentation View - Answers could be cut off
  • Fixed: Some window controls cut off on Windows 10 with display scaling
  • Fixed: Spelling errors
  • Fixed: Kuta Works - Course list could display more than just your active courses
  • Fixed: Graphing Rational Functions - Open holes in graph could appear as filled holes

Included in version 2.42 released 12/11/2018:

  • Fixed: Certain symbols incorrect if saved on Mac and loaded on Windows or vice versa
  • Fixed: General Sequences - Recursive formula sometimes wrong
  • Fixed: Properties of Logarithms - Avoid questions with reducible roots

Included in version 2.41 released 9/26/2018:

  • Fixed: Archived courses in Kuta Works are now hidden
  • Fixed: Generating or regenerating questions could cause a crash

Included in version 2.40 released 8/8/2018:

  • New: Integrated with Kuta Works. Now post assignments online.

Included in version 2.25 released 4/27/2018:

  • Improved: Generate questions more quickly
  • Improved: Measurement arrows reach correct endpoints
  • Improved: Absolute Value Equations - Better decimal numbers
  • Improved: Absolute Value Inequalities - Better decimal numbers
  • Improved: Compound Inequalities - Better decimal numbers
  • Improved: Multi-Step Equations - Better decimal numbers and more predictable special cases
  • Improved: Multi-Step Inequalities - Better decimal numbers
  • Improved: Order of Operations - Better decimal numbers
  • Fixed: Trig units for piecewise functions and ordered pairs
  • Fixed: Graphing Rational Functions - Prevent equivalent choices
  • Fixed: Law of Sines - Program could freeze
  • Fixed: Transformations - Prevent equivalent choices

Included in version 2.18 released 7/31/2017:

  • Fixed: Open circles on graphs were filled in when displayed as answer in red
  • Fixed: Typo in sample custom question
  • Fixed: Transformations - Program could freeze
  • Fixed: Systems of Quadratic Equations - Program could freeze

Included in version 2.17 released 4/27/2017:

  • Improved: [Windows] "Export to clipboard as bitmap" renders image with better quality
  • Fixed: Probability with Combinations and Permutations - Could ask about impossible lottery ball

Included in version 2.16.20 released 11/16/2016:

  • Fixed: Solving Quadratic Equations by Taking Square Roots - Option to "Allow fractions" not working as expected

Included in version 2.16 released 9/16/2016:

  • Fixed: Numbers with many significant digits could round incorrectly
  • Fixed: Customized question containing an error could not be modified
  • Fixed: Customized question containing an error could cause a crash
  • Fixed: Feedback tool detects Windows 10 properly
  • Fixed: Mouse cursor when drag-dropping a question
  • Fixed: Keyboard shortcut for changing order of question sets in assignment

Included in version 2.15 released 7/14/2016:

  • Improved: Reorder question sets by dragging and dropping
  • Improved: Move individual questions within a set by dragging and dropping
  • Improved: Presentation View - Commands now on a movable, dockable toolbar
  • Improved: Added option for large toolbar icons
  • Improved: New icons
  • Fixed: Certain options could result in double parenthesis or parenthesis around a negative sign
  • Fixed: Arrow over vector variable name not red when appropriate
  • Fixed: Solving Systems of Equations by Graphing - Answer could be displayed twice
  • Fixed: Equations of Parabolas - Certain givens indicate wrong sign

Included in version 2.11 released 5/13/2016:

  • Improved: [Windows] "Export to clipboard as bitmap" pastes into Microsoft Word at appropriate DPI
  • Fixed: Keyboard shortcut for adding space to question set

Included in version 2.10 released 5/11/2016:

  • New: Preference for including "None of the above" as a choice
  • New: One column layout
  • New: Added support for Infinite Precalculus
  • New: Easily add piecewise functions of graphs in custom questions: Example: piecewise([2x-3] if [x<5], [x-1] if [x >= 5])
  • New: Easily add functions with restricted domains to graphs in custom questions Example: function(x/2, x<0)
  • Improved: More efficient layout of choices
  • Improved: [Mac] Added option for legal paper in page setup
  • Fixed: Spelling and grammatical errors
  • Fixed: Graphing Quadratic Functions - Prevent equivalent choices
  • Fixed: Binomial Theorem - Certain options didn't allow for many questions
  • Fixed: Right Triangle Trig - Couldn't select just one ratio except sine
  • Fixed: Right Triangle Trig - Answer sometimes given in problem
  • Fixed: Law of Cosines - Certain SAS cases could freeze program
  • Note: Older versions will not be able to open assignments saved with this version

Included in version 2.06 released 8/3/2015:

  • Fixed: Crash when saving if previously used folder no longer exists

Included in version 2.05 released 7/20/2015:

  • New Topic: Sample Spaces and The Fundamental Counting Principle
  • New Topic: Independent and Dependent Events
  • New Topic: Independent and Dependent Events Word Problems
  • New Topic: Mutually Exclusive Events
  • New Topic: Mutually Exclusive Events Word Problems
  • Fixed: Classifying Conics - Checkboxes for conic types had no effect
  • Fixed: Presentation View - Displayed wrong directions in 3-up mode
  • Fixed: Presentation View - Lines too long after creating new problems
  • Fixed: [Windows] Uncommon error when using the network

Included in version 2.04.40 released 3/31/2015:

  • Fixed: Activation data unrecognized under special circumstances
  • Fixed: [Windows] Help files broken by previous release
  • Fixed: Order of Operations - Radio buttons reversed

Included in version 2.04.20 released 3/23/2015:

  • Improved: [Windows] "Export to clipboard as bitmap" uses a transparent background

Included in version 2.04 released 3/17/2015:

  • New Topic: Permutations
  • New Topic: Combinations
  • New Topic: Permutations vs Combinations
  • New Topic: Probability with Permutations and Combinations
  • New Topic: Converting Degrees and Degrees-Minutes-Seconds
  • New: Added functions to custom questions:
    • [factorial(n)]
    • [perm(n, r)]
    • [comb(n, r)]
  • Improved: Better support for proxies
  • Improved: Support for HiDPI Mac Retina displays
  • Improved: Print options window - Some settings are now persistent
  • Improved: Presentation View - Use arrow keys to navigate between questions
  • Improved: Question set updates free response/multiple-choice when all questions have changed
  • Improved: [Mac] Activation also checks /Library/Preferences/ks-config.txt for serial numbers
  • Fixed: [Windows] Crash when printing with certain printers
  • Fixed: Crash when loading an assignment with over 80 custom questions
  • Fixed: Custom question answer was never choice A
  • Fixed: Paper size set before printing
  • Fixed: Cramer's Rule - Fixed directions
  • Fixed: Systems of Three Equations - Restored the option to "only solve for x"
  • Fixed: Center of circle wasn't appearing

Included in version 2.03 released 9/19/2014:

  • Fixed: Preference for question layout mode not correctly loaded
  • Fixed: Issues with automatic spacing and highlighting questions when using tight layout
  • Fixed: In Presentation View, graphing problems display choices more compactly
  • Fixed: Printing blank pages on HP LaserJet 1018, 1020, and 1022 among others
  • Fixed: Logs and Exponents as Inverses - problem with slider

Included in version 2.02 released 8/5/2014:

  • New: Software uses system proxy when necessary
  • Improved: Activation window has taskbar entry
  • Improved: Remembers the last directory used when saving and opening files
  • Fixed: [Windows only] Possible crash when loading an assignment with a lot of custom questions
  • Fixed: [Mac only] Application stops responding to hover events
  • Fixed: Activation from before v2.0 sometimes not recognized
  • Fixed: Export to clipboard sometimes cuts off choices B and D
  • Fixed: Help contents could become unusable
  • Fixed: Word wrap when modifying a question
  • Fixed: Memory leak

Included in version 2.01 released 7/28/2014:

  • Fixed: Could crash when opening an assignment from a different program

Included in version 2.00 released 7/23/2014:

  • New: Print to PDF
  • New: Filter for topic list
  • New: Zoom while viewing on screen
  • New: "More like these" button in presentation mode
  • New: Show where punch holes will go on the page
  • New: Print only an answer sheet
  • New: When printing, page range is enabled
  • New: Page elements are outlined when hovered
  • New: Double-click on directions to change them
  • New: When merging assignments, options to put similar topics together or put them end-to-end
  • New: Highlight and go to the questions in a question set (menu command or shift-click)
  • New: Site licenses can be activated per-machine if run by the administrator
  • New: Select multiple questions at a time:
    • Ctrl-Click on a question
    • Shift-Click on a question
    • Ctrl-Shift-Click on a question
    • Shift-Click in a empty area of a page
    • Ctrl-Shift-Click in a empty area of a page
    • Shift-Click on a question set
    • Ctrl-Shift-Click on a question set
  • Improved: Assignment files are drastically smaller
  • Improved: Sidebar is dockable on either side, can be floated, and position reset
  • Improved: Auto-spacing doesn't leave dead space at bottom of each page
  • Improved: Preview when editing directions
  • Improved: Keyboard shortcuts work no matter where the focus is
  • Improved: Scale number of questions window more user-friendly
  • Fixed: Minor bugs in seven topics
  • Note: Older versions will not be able to open assignments saved with this version

Included in version 1.56 released 8/14/2013:

  • Fixed: Graphing Exponential Functions - Correct choice used lighter shade of blue
  • Fixed: Radical Equations could be missing a solution
  • Fixed: Graphs of Polynomial Functions - Inflection points sometimes listed as local extrema
  • Fixed: Properties of Exponents - Occasionally answer wasn't fully simplified
  • Fixed: Dividing Polynomials - Occasionally polynomial was evenly divisible when it shouldn't have been
  • Fixed: Graphing Rational Functions - Minor UI issue
  • Fixed: Geometric Sequences - Given information sometimes allowed for two possible common ratios
  • Fixed: Dividing Polynomials could freeze
  • Fixed: Systems of Equations by Elimination - "No solution" occasionally should have been "Infinite solutions"

Included in version 1.55 released 12/11/2012:

  • New: Graphs can be added to custom questions
  • Improved: Graphing and Graph Paper utility more powerful and easier to use
  • Improved: Support for loading files from Infinite Calculus
  • Improved: Faster save/load
  • Fixed: Answer for Factoring Quadratic Expressions sometimes incorrect
  • Fixed: Choices for Evaluating Functions with a variable operand could contain wrong variable
  • Fixed: Choices for Function Operations with a variable operand could contain wrong variable
  • Fixed: Function Operations, functions when composed with self could provide the wrong answer
  • Fixed: Custom questions with an illegal expression could freeze the program
  • Fixed: Certain families of functions graphed incorrectly
  • Note: Older versions will not be able to open assignments saved with this version

Included in version 1.53 released 9/11/2012:

  • New: Preference for notation for greatest integer function
  • New: Added maximize/restore button to Presentation View
  • New: Graphing Absolute Value Equations has options for including coefficients
  • Improved: Help files
  • Improved: Scroll bars
  • Improved: User interface
  • Improved: When choices make a question too tall for a page, some choices are removed
  • Improved: Algebraic simplification routines are now more efficient
  • Improved: Better graphs for: Graphing Absolute Value Equations, Graphing Linear Equations, Graphing Exponential Functions, Graphing Quadratic Functions, Graphing Linear Inequalities, Graphing Systems of Linear Inequalities
  • Improved: Better number lines for: Multi-Step Inequalities, Compound Inequalities, Absolute Value Inequalities
  • Fixed: Wrapping to full-page and half-page could be too wide
  • Fixed: Able to graph certain families of functions
  • Fixed: Issue involving loading & regenerating an assignment and answers being hidden
  • Fixed: Program could ask about changing directions too much
  • Fixed: Graphs for Compound Inequalities could omit interval
  • Fixed: Double & Half Angle Identities: Button to show more examples did not work
  • Fixed: Writing Linear Equations: Answer can't be line given in question

Included in version 1.52 released 5/29/2012:

  • Improved: More professional radical signs
  • Improved: Graphs of discontinuous functions have breaks and open / closed holes
  • Improved: Even less likely to crash when generating questions
  • Fixed: Word wrapping could skip blank lines, not wrap where appropriate
  • Fixed: Wrapping to full page in a custom question was too wide
  • Fixed: Products of powers of e (like 2e&sup3;) no longer display with a multiplication dot
  • Fixed: Most diagrams appeared incorrectly in print preview
  • Fixed: Random error message on save or load
  • Fixed: Graphing Rational Functions: Open holes in graph could appear as filled holes

Included in version 1.51.02 released on 4/9/2012:

  • Fixed: Minimum Windows version was set incorrectly

Included in version 1.51 released 4/5/2012:

  • New: Added greatest integer function / floor function to custom questions    Example: Find [int(2x)] when [x=3/5]
  • New: Added piecewise functions to custom questions    Example: [eval(f,x)] = [piecewise [x] if [x < 0], [xx] if [x >= 0]]
  • Improved: Faster! Optimized rendering of questions to screen
  • Improved: Faster! Optimized graphing routines
  • Improved: Improved graphing capabilities
  • Improved: Diagrams drawn more smoothly on screen
  • Fixed: Rewriting Logarithms - Numeric problems sometimes had bad values
  • Fixed: Evaluating Logarithms - Problems sometimes had bad values
  • Fixed: Graphs could omit holes
  • Fixed: Graphs of constant functions or those involving e and π could be incorrect
  • Fixed: Minor indentation issue in custom questions
  • Fixed: Horizontal asymptotes could be drawn beyond a graph's area
  • Note: Older versions will not be able to open assignments saved with this version

Included in version 1.50 released 3/15/2012:

  • New: Presentation View window is resizeable
  • New: Presentation View has option to automatically hide the answers when a new question is displayed
  • New: High-level filter to prevent questions from containing an illegal expression
  • Improved: Function notation can now be edited
  • Improved: Faster! Optimized the simplification of mathematical expressions
  • Improved: Faster! Improved undo/redo algorithm
  • Improved: Smaller executable size
  • Improved: "Current Question Sets" list easier to use
  • Improved: Options windows resize more smoothly
  • Fixed: Equation of Parabolas could freeze
  • Fixed: Geometric Series questions could list "Illegal Expression" as a choice
  • Fixed: Graphing Exponential Functions could freeze
  • Fixed: Systems of Equations Word Problems could freeze
  • Fixed: Punctuation in some word problems
  • Fixed: Certain expressions in a custom question would cause the software to crash
  • Fixed: Expressions like root × term would not print a multiplication dot
  • Note: Beginning with this version, Windows XP SP3 is the minimum required version of Windows
  • Note: Older versions will not be able to open assignments saved with this version

Included in version 1.45 released 4/12/2011:

  • New: Assignments from this program can be opened and modified by our other programs          (Assignments saved with v1.45 or greater can be opened by other programs v1.45 or greater)
  • New: Student data fields (name, date, period) can be renamed
  • New: Additional student data field available
  • New: Add & Continue is available when modifying an existing question set
  • New: Link to this details page when a software update is available
  • New: Product serial numbers can be placed in config.txt to facilitate enterprise installations
  • Improved: Better backwards- and future-compatibility
  • Fixed: Assignments with quotes in the title don't prevent Save As
  • Fixed: Quotients could be sometimes be simplified incorrectly
  • Fixed: Writing Linear Equations: Answer can't be line given in question
  • Fixed: Choices for dilations sometimes inappropriate
  • Fixed: Dilations rounding x- and y-coordinates
  • Fixed: Function Operations could have "Illegal Expression" as an answer or as a choice
  • Fixed: Multi-Step Equations: Program could freeze
  • Fixed: Dividing Radical Expressions: Program could freeze
  • Fixed: Add & Continue respects change in problem type
  • Fixed: Powers of i are correctly displayed

Included in version 1.42 released on 6/28/2010:

  • New: Automatically checks for updates
  • New: List topics by index order or suggested order

Included in version 1.40 released 2/8/2010:

  • New Preference: 'Spacious' or 'tight' layout of questions on page
  • Improved: Question sets with one question are more intelligently spaced
  • Improved: Graphs with small ranges now look better
  • Improved: Options screen now resizeable
  • Fixed: Directions occasionally orphaned at bottom of page
  • Fixed: Correct numbers changed because zeros at the end of a number were deleted (50 --> 5)

Included in version 1.08.20 released 5/22/2009:

  • Changed: Minor change to license agreement so that renewals extend the termination date instead of beginning a new term.

Included in version 1.08 released 4/10/2009:

  • New: Possible to change directions for a set without regenerating questions
  • Improved: Help files
  • Improved: Changing directions cascades changes to appropriate neighbors
  • Correction: Answers to Properties of Exponents could have wrong sign
  • Correction: Inequalities were sometimes solved incorrectly
  • Fixed: Software sometimes failed to renumber questions in assignment

Included in version 1.07 released 1/6/2009:

  • New: Trig. equations that don't require factoring
  • Correction: Function operations / linear combinations answers sometimes wrong
  • Fixed: Software crashes when starting if closed when side panel is minimized

Included in version 1.06 released 12/4/2008:

  • Improved: Isolate up to four questions on screen at once
  • Improved: Support for computers with multiple processors
  • Improved: User interface: Toolbar + Preferences
  • Fixed: Obscure error involving selecting a question and scaling the assignment

Included in version 1.03 released 10/1/2008:

  • New: Export individual questions as bitmaps
  • Improved: Custom questions wrap to whole/half page
  • Improved: Insert special symbols and math in custom questions
  • Improved: Insert 'blanks' into math text
  • Improved: Line thickness preference also now controls darkness of grid lines in graphs
  • Correction: Writing logs in terms of others sometimes created duplicate questions
  • Fixed: Internet calls would sometimes report wrong error

Included in version 1.02 released 9/18/2008:

  • Correction: Question type was not saving all of its options
  • Correction: Equations of Hyperbolas description was sometimes wrong
  • Correction: Geometric Series directions was sometimes wrong
  • Correction: Binomial Theorem type could cause the program to freeze
  • Correction: Quadratic/Linear systems sometimes had the wrong answer
  • Correction: Rational Exponents answers now correct
  • Fixed: Internet calls could freeze program