Examples
Examples
Try the starting example
- Disc readings: location label, measured thickness mm
- A,20.1 B,19.8 C,20.0
- Manufacturer/mechanic-supplied minimum thickness (mm)
- 18
- Smallest measured thickness (mm)
- 19.8
- Smallest reading minus supplied minimum (mm)
- 1.8
- Observed maximum-minus-minimum spread (mm)
- 0.3
- Reading locations strictly below supplied minimum
- None
- Mean supplied thickness (mm)
- 19.966667
Try another scenario
- Disc readings: location label, measured thickness mm
- A,20.1 B,19.8 C,20.0
- Manufacturer/mechanic-supplied minimum thickness (mm)
- 20
- Smallest measured thickness (mm)
- 19.8
- Smallest reading minus supplied minimum (mm)
- -0.2
- Observed maximum-minus-minimum spread (mm)
- 0.3
- Reading locations strictly below supplied minimum
- B
- Mean supplied thickness (mm)
- 19.966667
Calculation method
Calculation method
Smallest measured thickness (mm)
Minimum of the supplied readings only.
Smallest reading minus supplied minimum (mm)
Signed measured minimum−external comparison limit.
Observed maximum-minus-minimum spread (mm)
Observed max−min, not a runout measurement.
Reading locations strictly below supplied minimum
Compare exact decimal readings to the supplied limit.
Mean supplied thickness (mm)
Arithmetic mean of the supplied location readings.
Symbols and units
- a
- Disc readings: location label, measured thickness mm
- b
- Manufacturer/mechanic-supplied minimum thickness (mm)
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions & limits
Assumptions & limits
- A supplied measurement/limit comparison, not a brake inspection or service-life determination. Measurement method, minimum specification, condition and acceptance decisions require external verification.
Are these inputs private?
These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.
Further reading
OpenStax: ratios, unit rates and supplied measurement arithmetic ↗
Background reading; this does not imply endorsement or independent review of SumFizz.