update target sdk and performance improvement

Version 4.76 Update:
       • Fixed an issue where calculation mode (RPN/Algebraic) would occasionally reset to chain mode.
Version 4.75
Enhanced External Keyboard Support:
• For MacOS users: Keyboard support for non-touchscreen devices
• Support for Bluetooth keyboards on iPhone and iPad
• Faster data entry with numeric keypads
• Added support for Enter and Clear keys on Apple numeric keypads
• New letter key shortcuts: Shift for secondary functions, STO for quick store, RCL for easy recall

This update improves usability for iPad users and adds convenient keyboard input for those using the app on MacOS devices. Full documentation on external keyboard support and other features available on our website.

Enhanced External Keyboard Support:
• For MacOS users: Keyboard support for non-touchscreen devices
• Support for Bluetooth keyboards on iPhone and iPad
• Faster data entry with numeric keypads
• Added support for Enter and Clear keys on Apple numeric keypads
• New letter key shortcuts: Shift for secondary functions, STO for quick store, RCL for easy recall

This update improves usability for iPad users and adds convenient keyboard input for those using the app on MacOS devices. Full documentation on external keyboard support and other features available on our website.

Additional accessibility descriptions have been added to:
    - CALC 1 Calculator Keys
    - The Calculator toolbar
    - The List Manager Toolbar

New right-swipe gestures in the List Manager:
 - Copy values to the stack
 - Move a row to the top

Improved cash flow management with new row operations
Updated build for latest iOS.
Added Subscription.

New right-swipe gestures in the List Manager:
 - Copy values to the stack
 - Move a row to the top

Improved cash flow management with new row operations
Updated build for latest iOS.
Added Subscription.

New right-swipe gestures in the List Manager:
 - Copy values to the stack
 - Move a row to the top

Improved cash flow management with new row operations
For full details, check 'What's New' on our documentation website.

We're excited to introduce the latest updates to CALC 1 Financial, designed to enhance your financial problem-solving experience:

1. Free Focused and Function Calculators (New for CALC 1 Financial)
   - ALL Focused and Function Calculators are now available as FREE downloads in CALC 1 Financial, giving you access to the full range of powerful tools previously only available in CALC 1 Programmable, without additional costs.

2. Updated Bonds Calculator
   - The Bonds calculator now includes Redemption Value, providing you with even more comprehensive bond calculations.

3. Improved History Details
   - We've replaced the History Details toolbar buttons with intuitive symbols to facilitate accessibility and language requirements, making it easier for visually impaired and non-English speaking users to understand and navigate the History Detail tools.

4. Enhanced Date Form Calculator
   - The Date Form Calculator now calculates 360 and 360e days, giving you more options for date-based calculations.

5. Included Data Manager Access (New for CALC 1 Financial)
   - CALC 1 Financial versions now include access to the Data Manager, allowing you to store unlimited named lists and more for efficient organization and management of your financial data within the app. This feature was previously only available in CALC 1 Programmable.

Updates for the latest iOS.

Minor updates for the current iOS.

Version 4.50
Minor updates for the latest iOS.

Version 4.41
This is a major free update with a new plotting framework with over 10 new plotting keys for easy plotting of expressions and data to communicate information clearly and efficiently.

Copy, paste, plot!
Copy data to the clipboard, paste it into the List Manager.  Then with 1 tap create histograms, box plots, scatter diagrams and more.

The updated 1 List Statistics  calculator will plot histograms or 1-5 box plots from list data.  It also has new keys for 1 tap calculation of summary stats, percentile, inverse percentile and sorting.

The updated 2 List Statistics calculator will plot list data.
The curve fitting calculators will plot scatter plots with the the best fit lines by simply pressing the “plot” key.

Plot or solve algebraic expressions.

The plots use Apple System Colors that automatically adapt to both light and dark modes, vibrancy and changes in accessibility settings like increased contrast.

This is a major free update with a new plotting framework with over 10 new plotting keys for easy plotting of expressions and data to communicate information clearly and efficiently.

Copy, paste, plot!
Copy data to the clipboard, paste it into the List Manager.  Then with 1 tap create histograms, box plots, scatter diagrams and more.

The updated 1 List Statistics  calculator will plot histograms or 1-5 box plots from list data.  It also has new keys for 1 tap calculation of summary stats, percentile, inverse percentile and sorting.

The updated 2 List Statistics calculator will plot list data.
The curve fitting calculators will plot scatter plots with the the best fit lines by simply pressing the “plot” key.

Plot or solve algebraic expressions.

The plots use Apple System Colors that automatically adapt to both light and dark modes, vibrancy and changes in accessibility settings like increased contrast.

Updates to the plotting!
They now use System Colors that adjust to dark mode and automatically adapt to changes in accessibility settings like Increase Contrast.
All of the parameter values are now shown on the plots from the Function Calculators.
A new toolbar button will quickly display the latest history detail.
A new expression editor allows full keyboard editing of expressions.
Expressions can be restored from history.

A Search Bar has been added to the Function Calculator list.

This version contains support for external keyboards.
Numeric entry (0-9) and most expressions (+, -, *, /) can be performed with an external keyboard on the CALC 1 calculators and the HP reproductions.
See the ‘Keyboard Support’ page under the ‘Getting Started’ section of the documentation.

This update covers the changes for iOS 13 (support for Dark and Light Appearance).
Amortization has been added TVM Form Calculator.
The TVM, Bonds and Depreciation calculators user interfaces have been updated to "Table Views" to make them better adopt to different devices and sizes.  Now all Form Calculators use Table Views.

The CALC 1 TVM Focused Calculators have been updated with STO/RLC of all of the TVM values (N, I/YR, PV, PMT, FV, P/YR, C/YR, PER1, PER2 BEG/END) at once! Now you can STO different initial values or quickly switch between different scenarios.
This STO/RCL “object” feature has also been added to the Ratios Focused Calculator.
We enhanced the status annunciators to display all the values not shown on the key previews. So instead of just BEG mode the P/YR, PER1 PER2 are displayed.
Each status annunciator is specific to the Focused Calculator so, for example, BEG, P/YR are only shown on the financial calculators that use them and DEG is only shown on calculators with trigonometry functions.
For version 4.15: The results of the History Item when solving for a Function Calculator parameter has been changed to the value of the parameter.

The CALC 1 TVM Focused Calculators have been updated with STO/RLC of all of the TVM values (N, I/YR, PV, PMT, FV, P/YR, C/YR, PER1, PER2 BEG/END) at once!  Now you can STO different initial values or quickly switch between different scenarios.
This STO/RCL “object” feature has also been added to the Ratios Focused Calculator.

We enhanced the status annunciators to display all the values not shown on the key previews.  So instead of just BEG mode the P/YR, PER1 PER2 are displayed.
Each status annunciator is specific to the Focused Calculator so, for example,  BEG, P/YR are only shown on the financial calculators that use them and DEG is only shown on calculators with trigonometry functions.

New video overview in the Getting Started section of the documentation.  (App Support link).
A "New User" dialog.
Changes in some of the key hints.

In recent versions:

Updated the TVM calculator amortization to use C/YR (compounding periods per year).
Automatic check for calculator updates.
Updated for new iPhones.
Added a time value of money (TVM) calculator with periodic rate and odd periods, similar to a 12C.
This is for users who want the periodic rates and odd periods of a 12C, but on a modern calculator with key previews, undo, history for verifying and sharing and amortization for arbitrary periods without changing the TVM N or PV values.
CALC 1 now has 5 TVM calculators: 2 CALC 1 Focused Calculators, 2 HP reproductions, (12C and 10bii) and a TVM calculator on a form.
New calculator key layouts with 'spell' key on most of them.
Example: Spell Out of : 1234
one thousand two hundred thirty-four
The spell out key is useful for reports, contracts...
Added a "All Updates" button to the downloads to make updating calculators easier.
Version 4 is the largest re-write of CALC 1 since it was introduced in 2010.

Updated the TVM calculator amortization to use C/YR (compounding periods per year).
Automatic check for calculator updates.

In previous versions:

Updated for new iPhones.
Added a time value of money (TVM) calculator with periodic rate and odd periods, similar to a 12C.
This is for users who want the periodic rates and odd periods of a 12C, but on a modern calculator with key previews, undo, history for verifying and sharing and amortization for arbitrary periods without changing the TVM N or PV values.
CALC 1 now has 5 TVM calculators: 2 CALC 1 Focused Calculators, 2 HP reproductions, (12C and 10bii) and a TVM calculator on a form.
New calculator key layouts with 'spell' key on most of them.
Example: Spell Out of : 1234
one thousand two hundred thirty-four
The spell out key is useful for reports, contracts...
Added a "All Updates" button to the downloads to make updating calculators easier.
Version 4 is the largest re-write of CALC 1 since it was introduced in 2010.

Updated for new iPhones.
Added a time value of money (TVM) calculator with periodic rate and odd periods, similar to a 12C.
This is for users who want the periodic rates and odd periods of a 12C, but on a modern calculator with key previews, undo, history for verifying and sharing and amortization for arbitrary periods without changing the TVM N or PV values.
CALC 1 now has 5 TVM calculators: 2 CALC 1 Focused Calculators, 2 HP reproductions, (12C and 10bii) and a TVM calculator on a form.
New calculator key layouts with 'spell' key on most of them.
Example: Spell Out of : 1234
one thousand two hundred thirty-four
The spell out key is useful for reports, contracts...

Added a "All Updates" button to the downloads to make updating calculators easier.
Version 4 is the largest re-write of CALC 1 since it was introduced in 2010.

Added a time value of money (TVM) calculator with periodic rate and odd periods, similar to a 12C.
This is for users who want the periodic rates and odd periods of a 12C, but on a modern calculator with key previews, undo, history for verifying and sharing and amortization for arbitrary periods without changing the TVM N or PV values.
CALC 1 now has 5 TVM calculators: 2 CALC 1 Focused Calculators, 2 HP reproductions, (12C and 10bii) and a TVM calculator on a form.

New calculator key layouts with 'spell' key on most of them.
Example: Spell Out of : 1234
one thousand two hundred thirty-four
The spell out key is useful for reports, contracts...

Added a "All Updates" button to the downloads to make updating calculators easier.
Version 4 is the largest re-write of CALC 1 since it was introduced in 2010.

New calculator key layouts with 'spell' key on most of them.
Example: Spell Out of : 1234
one thousand two hundred thirty-four

The spell out key is useful for reports, contracts...

Added a "All Updates" button to the downloads to make updating calculators easier.
Version 4 is the largest re-write of CALC 1 since it was introduced in 2010.

Changes to some calculator key layouts.