Release 0.9.10 "Best" - Ranges and documentation

[c3d]

This release is primarily a refinement of ranges and a documentation update.

New features

• Always display infinity ranges with range notation
• Add constant for -∞
• Add support for ranges in Explode / Obj→
• Add support for delta and percent ranges in ToDecimal
• Allow Copy to target a local variable or setting
• Support True and False in →Num

Bug fixes

• Replace log with ln, make log be base-10 logarithm
• Check zero-divide in ranges
• Fix the implementation of trig functions for ranges
• Fix incorrect command associated to the %T alias (should be %Total)
• Adjust help for log10 and ln
• Avoid pushing a null pointer on the stack on error evaluating constants
• Add missing Ⓒ sign in uncertainty for Epl
• Fix constant evaluation referencing this after it may have moved
• Report missing current directory in Purge
• Report errors when purging invalid objects in Purge and PurgeAll
• Avoid ClearThingsMenu in tests, the key maps to forward delete in editor

Improvements

• keyboard: Update layout to include σ character
• Remove the state/Test.48S file, it's not longer relevant
• Add constant case to object::is_negative
• Add DATE- as an alias for DDAYS
• Add PgAll as an alias for PurgeAll
• More systematic purging of environment and variables between tests
• Add check in test suite that we actually purged special variables
• Refresh authors list
• Move documentation for PPAR to plot.md
• Avoid date conversions during constant evaluation
• Accelerate and improve the display of constant values in menus
• Add launch.json and tasks.json build configuration generated by Cursor
• Send a START_TEST command at start of test, refresh simulated battery
• Cursor-assisted review of missing command documentation
• Cursor-assisted generation of content in the Quickstart guide
• Cursor-assisted improvements to grammar and spelling
• Documentation and examples for Blank variants
• Documentation and examples for Gray and RGB
• Documentation and examples for PMIN, PMAX, XRNG, YRNG
• Documentation and examples for Eq and equations
• Add examples for list sum, product and difference commands

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