A view into the mind of Jason

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Tuesday, March 28 2017 @ 09:25 MDT

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F stops between f numbers

FormulasFor the number of f stops between two f numbers (e.g. f11.8 and 7.4).
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Miles Per Gallon to Litres per 100 km

FormulasFor MPG given in US gallons, use this formula:




For MPG given in Imperial gallons, use this formula:




Both yield L/100km.
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Voltage Divider Formula

FormulasFor a given voltage divider:



To work out the output voltage Vo:



To work out the value of R1 for a particular Vi and Vo:



Where R1 and R2 are resistances in ohms and Vi and Vo are potentials in volts.
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Formula Section

FormulasThe purpose of this section is to store formulas that I have found useful and don't want to have to remember or hunt down again.