vital, indispensable, essential, important, instrumental, crucial, invaluable, key, pivotal, linchpin, paramount, critical, lynchpin, role, cornerstone, keystone, inextricable, component, integrated, part, enabler, active, inseparable, foundational, element, intrinsic, imperative, sine qua non, importance, prerequisite, preeminent, focal point, excellent, interwoven, irreplaceable, mainstay, cog, intertwined, engrained, valuable, centerpiece, ideal, complementary, aspect, backbone, dynamic, lifeblood, beneficial, underpinning, indivisible, factor, facets, interchangeable, interdependent, hallmark, fulcrum, centrality, contributor, overarching, enhancing, cohesively, defining, emphasizes, credited, vitalizing, touchstone, forefront, fortes, influential, assisting, significant, complementing, shaping, anathema, unique, successful, seminal, engrain, pillars, exemplary, exciting, unquestionable, oncogenesis, furthering, fundamental, molded, jigsaw, facilitating, guiding, multifaceted, predominant, exceptional, catalyst, fantastic, dedicated, supporting, necessity, problematic, quintessential, capable, vested interest, unrivaled, integrals, equation, ordinate, fourier, eq, equations, graph, linear, sequence, exponential, functional, multiple, quadrature, convolution, metric, set, sine, finite, lemma, logarithm, constitutive, bilinear, computable, covariant, quadratic, tive, additive, indexical, multiplicative, algebraical, approximative, invariant, semantic, trigonometric, corresponding, derivative, discretized, ideational, nonlinear

definite integral, indefinite integral

., accidental, adventitious, build in, consolidation, definite integral, embedded, indefinite integral, inner mongolia, integrally, integrate, integration, nei monggol, nonessential, operator, power series, prime number, quantise, quantize, strategic

calculation, computation, figuring, reckoning

built-in, constitutional, entire, inbuilt, inherent, intact, intrinsic, intrinsical, whole