import type { TypedFunction } from '../../core/function/typed.js';
/**
 * Compressed-column (CSC) storage of a sparse matrix: the values, the row index of each
 * value, and the column pointers.
 */
export interface SparseMatrixData {
    _size: number[];
    _values?: unknown[];
    _index: number[];
    _ptr: number[];
}
interface CsSqrDependencies {
    add: TypedFunction;
    multiply: TypedFunction;
    transpose: TypedFunction;
}
/** Result of `csSqr`: the symbolic analysis for a later LU or QR factorization. */
export interface SymbolicAnalysis {
    q: number[] | null;
    parent?: number[] | null;
    cp?: number[] | null;
    pinv?: number[];
    leftmost?: number[];
    lnz?: number;
    unz?: number;
    m2?: number;
}
export declare const createCsSqr: import("../../utils/factory.js").FactoryFunction<CsSqrDependencies, (order: number, a: SparseMatrixData, qr: boolean) => SymbolicAnalysis | null>;
export {};
//# sourceMappingURL=csSqr.d.ts.map