double-double/src/double-double/unary/dd-mult-by-2.ts

Pure double-double precision functions *with strict error bounds*.

/**
 * Returns the result of multiplying the given double-double by 2.
 * * The result is exact
 * @param f a double-double precision floating point number
 */
function ddMultBy2(f: number[]) {
    return [2*f[0], 2*f[1]];
}


export { ddMultBy2 }