### BCMATH programs for binary quadratic forms and quadratic fields: negative discriminants

- Reducing a binary positive definite quadratic form of negative discriminant;
- Finding the composite of two binary positive definite quadratic forms of same negative discriminant;
- Finding the nth power under composition of binary positive definite quadratic forms of negative discriminant;
- Finding the order of under composition of a binary positive definite quadratic forms of negative discriminant in the class group;
- Finding the reduced binary quadratic forms of negative discriminant -d and the class number h(-d);
- Calculating the class numbers h(-d) for classes of binary quadratic forms of negative discriminant -d, with d in a given range.
- Calculating the class numbers h(-d) of imaginary quadratic fields Q(√-d) in a given range of squarefree d.

*Last modified 19th July 2006*

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