Release 0.4.7: Numerical solver and integration

New features

• root for numerical root finding (#36)
• integrate for numerical integration (#42), using Romberg algorithm
• Auto-simplification of i*i as -1 (#411)

Bug fixes:

• LastArg and Undo were not correct after comparisons (#402)
• Invalid equation created for symbolic comparisions, e.g A=B (#403)
• Converting 100! to a based number would display #00 (#405)
• Avoid crash if running out of memory processing fractions
• Possible memory corruption during negation of complex numbers (#406)
• Fix typo in User settings menu, rename it as UI
• ->Q could give incorrect result for decimal32 and decimal64 (#409, #410)

Enhancements:

• Accelerated editor when VariablesMenu is shown (#404)
• Being able to pass equations containing equal sign to solver (e.g. X+1=3)
• Insert a single colon : inside text
• Sharing more code between plotter, solver and integrator
• Simulator uses the DB48X keyboard by default
• Label for constants menu changed to CNST

Signed-off-by: Christophe de Dinechin christophe@dinechin.org

Full Changelog: v0.4.6...v0.4.7