In TradingView it’s pretty easy.
1. When entering your ticker, start with an equals sign “=“ to make a formula.
2. Divide by your intended denominator. For example, to see Gold priced in Bitcoin, the formula would be:
=XAUUSD/BTCUSD
The “USD”s cancel, just like dealing with units in chemistry or physics class, and you’re left with XAU/BTC.
3. Tweak the decimal point. TradingView is not good about showing significant digits. So depending on what you’re looking at you may need to bring it up or down. Multiply by a power of 10 to move the decimal.
So my Gold/Bitcoin formula is:
=XAUUSD/BTCUSD*10^4
This moves the decimal four places to the right. The chart will render exactly the same, but instead of numbers like “0.05”, you get numbers like “498.67”.
On log scale, the multiplier makes no difference. Log scales preserve proportional moves, so it’s like A/B vs (A*100)/(B*100). The ratio comes out the same, so the log scale charts look the same. The multiplier is just a convenience for legible numeric labels.