Formula
- Use the units shown beside each field.
- Results update automatically whenever you change an input.
- Displayed values use up to four decimal places, or scientific notation for very small or large numbers. Calculations use standard floating-point arithmetic; exact integer and fraction tools identify their own precision rules.
- Numerical evaluation of two quadratics (including linear/constant cases); not arbitrary expression parsing.
Example Calculation
- f quadratic coefficient: 1
- f linear coefficient: 0
- f constant: 1
- g quadratic coefficient: 0
- g linear coefficient: 2
- g constant: 0
- x: 3
f quadratic coefficient = 1; f linear coefficient = 0; f constant = 1; g quadratic coefficient = 0; g linear coefficient = 2; g constant = 0; x = 3. Primary result: 37.
Frequently asked questions
How do I use this calculator?
Enter f quadratic coefficient, f linear coefficient, f constant, g quadratic coefficient, g linear coefficient, g constant, x. The result updates automatically. Use Reset to restore the example values.
What method does it use?
g(x)=Ax²+Bx+C; f(g(x))=a g(x)²+b g(x)+c.. Numerical evaluation of two quadratics (including linear/constant cases); not arbitrary expression parsing.
Why might a rounded result differ?
The calculation keeps full numeric precision internally, then rounds the displayed result. Rounding intermediate steps by hand can produce a slightly different answer.
Are my inputs saved online?
No. This calculator processes your inputs in your browser. A recently used list stores only calculator names on this device, not your entered values.
Check the assumptions and units before using this result. Read about calculation methods.