Add Ohm's Law calculator with unit conversions

[RichardBronosky]

Add Ohm's Law calculator with unit conversions

There are MANY online calculators for Ohm's Law. The formulas are simple. The units are simple. But the UIs are clunky, and the UX is frustrating. Adding this calculator in FYN would create the first oninput (aka: no "click calculate", and certainly no "page reload") tool of its kind.

Formulas

• V = I x R
• I = V / R
• R = V / I
• P = V x I
• V = P / A
• A = P / V

Unit Modifiers

• M: Mega
  • 1M_Unit =1,000,000 x 1_Unit
  • 1M_Unit =1,000 x 1k_Unit
• k: kilo
  • 1k_Unit =1,000 x 1_Unit
  • 1k_Unit =0.001 x 1M_Unit
• m: milli
  • 1m_Unit =0.001 x 1_Unit
  • 1m_Unit =1,000 x 1µ_Unit
• µ: micro
  • 1µ_Unit =0.000001 x 1_Unit
  • 1µ_Unit =0.001 x 1m_Unit

Units

• V: Voltage measured in Volts symbolized as V
  • 1mV = 0.001V
  • 1V = 1000mV
  • 1µV = 0.000001V
  • 1µV = 1000mV
  • 1V = 1000000µV
• I: Current measured in Amperes symbolized as A
  • 1mA = 0.001A
  • 1A = 1000mA
  • 1µA = 0.000001A
  • 1µA = 1000mA
  • 1A = 1000000µA
• R: Resistance measured in Ohms symbolized as Ω
  • 1kΩ = 1000Ω
  • 1Ω = 0.001kΩ
  • 1MΩ = 1000000Ω
  • 1kΩ = 0.001MΩ
  • 1Ω = 0.000001MΩ
• P: Power measured in Watts symbolized as W

Visualized like so:

[RichardBronosky]

I intend to address this issue in a branch on my fork. https://github.com/RichardBronosky/fix-your-nums/blob/ohms-law/TODO.md