Examples
Examples
Try the starting example
- Signed thin-lens focal length (mm)
- 50
- Real object distance (mm)
- 200
- Signed image distance (mm)
- 66.666667
- Transverse magnification
- -0.333333
Try another scenario
- Signed thin-lens focal length (mm)
- 55.00000000000001
- Real object distance (mm)
- 200
- Signed image distance (mm)
- 75.862069
- Transverse magnification
- -0.37931
Calculation method
Calculation method
Signed image distance (mm)
Image distance=f*object/(object-f); transverse magnification=-image/object.
Transverse magnification
Image distance=f*object/(object-f); transverse magnification=-image/object.
Symbols and units
- a
- Signed thin-lens focal length (mm)
- b
- Real object distance (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
- Real-positive sign convention, virtual image negative; image at infinity rejected. Supported limits: All required fields must be finite values of the exact declared type and within displayed bounds. Lists contain1–1000 finite numbers. JSON tables are numeric rectangular rows, at most100 rows and30 columns; individual tools have stricter shape/domain constraints. Real-positive sign convention, virtual image negative; image at infinity rejected.
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
Background reading; this does not imply endorsement or independent review of SumFizz.