Function expectPoly

test/compute-engine/series.test.ts:45–54

Assert the truncated polynomial matches an expected LaTeX expression * exactly (structural/symbolic equality of exact coefficients).

(
  fLatex: string,
  expectedLatex: string,
  x0Latex?: string,
  n?: number
)

/** Assert the truncated polynomial matches an expected LaTeX expression
 * exactly (structural/symbolic equality of exact coefficients). */
function expectPoly(
  fLatex: string,
  expectedLatex: string,
  x0Latex?: string,
  n?: number
) {
  const got = normal(fLatex, x0Latex, n);
  const want = ce.parse(expectedLatex);
  if (!got.isSame(want)) expect(got.latex).toBe(want.latex);
}

//
// Exact-coefficient battery (§6)