Exp-Minus-Log made practical for RPN calculators

eml 1 e exp ln 0 arg(𝑥) – -𝑥 -1 2 + 1/𝑥 × 𝑥ʸ 𝑥² ÷ 𝑥/2 (𝑥+𝑦)/2 √𝑥 𝒊 logₓ(𝑦) 𝜋 √𝑥²+𝑦² expit cosh sinh tanh cos sin tan sinh⁻¹ cosh⁻¹ cos⁻¹ tanh⁻¹ sin⁻¹ tan⁻¹ $gap = 0.2 $opDia = 0.4 $opGap = $gap + $opDia $bigDia = 3 * $opDia $bigGap = 2 * $gap + $bigDia/2 $angle = -90 # starting angle = north, 0° $curl = 42 # degrees of curl per step $relax = 0.90 # per-step decay factor toward minimum turn $minCurl = 15 # lower floor prevents tight late loops $constTC = 0x3F4954 # constant text/border color $constBC = 0xE8EDF2 # constant background color $hypTC = 0x3F4F8A # hyperbolic function text/border color $hypBC = 0xE1E6F9 # hyperbolic function background color $trigTC = 0x1F4E79 # trig function text/border color $trigBC = 0xD9E9F7 # trig function background color $ufnTC = 0x7A4A20 #…

Excerpt limited to ~120 words for fair-use compliance. The full article is at Tangentsoft.