Step-by-step derivation
S001 · implies
Before
source roles = [gradient-symbolic-polynomial]
After
derived = [[dimension, canonical_terms, coordinate_derivative_polynomials, certificate]]
Conditions: none
List the source field order without JavaScript.Gradient boundary uses its original mode to choose6,8 or7 fields;no padding or answer-derived mode.
Step identifiers and dependencies
Rule: source_ordered_fields_without_JS · Uses: G001
S002 · calculation
Before
Gradient ORIGINAL monomial coefficient sum0 := sum(0, 3)
After
Gradient ORIGINAL monomial coefficient sum0 = 3
Conditions: none
Substitute original roles and established intermediates exactly;check nonzero denominators and do not round.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S001
S003 · implies
Before
source roles = [0, 2, [2, 1], 3]
After
derived = [3]
Conditions: none
Combine only identical ordered exponent vectors;remove zeros after combining and keep fixed Euclidean coordinate order.
Step identifiers and dependencies
Rule: Gradient_original_term_position_and_exponent_arity · Uses: G001, S002
S004 · calculation
Before
Gradient ORIGINAL monomial coefficient sum1 := sum(0, 4)
After
Gradient ORIGINAL monomial coefficient sum1 = 4
Conditions: none
Substitute original roles and established intermediates exactly;check nonzero denominators and do not round.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S003
S005 · implies
Before
source roles = [1, 2, [0, 1], 4]
After
derived = [4]
Conditions: none
Combine only identical ordered exponent vectors;remove zeros after combining and keep fixed Euclidean coordinate order.
Step identifiers and dependencies
Rule: Gradient_original_term_position_and_exponent_arity · Uses: G001, S004
S006 · calculation
Before
Gradient ORIGINAL monomial coefficient sum2 := sum(0, 1)
After
Gradient ORIGINAL monomial coefficient sum2 = 1
Conditions: none
Substitute original roles and established intermediates exactly;check nonzero denominators and do not round.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S005
S007 · implies
Before
source roles = [2, 2, [0, 0], 1]
After
derived = [1]
Conditions: none
Combine only identical ordered exponent vectors;remove zeros after combining and keep fixed Euclidean coordinate order.
Step identifiers and dependencies
Rule: Gradient_original_term_position_and_exponent_arity · Uses: G001, S006
S008 · implies
Before
source roles = [[[3, [2, 1]], [4, [0, 1]], [1, [0, 0]]]]
After
derived = [2, [[1, [0, 0]], [4, [0, 1]], [3, [2, 1]]]]
Conditions: none
Use source English canonical-exponent order,not numeric tuple order.Complete cancellation may yield an empty canonical list for the zero polynomial.
Step identifiers and dependencies
Rule: Gradient_canonical_nonzero_polynomial_terms_source_order · Uses: G001, S007
S009 · implies
Before
source roles = [0, 0, [0, 0], 1]
After
derived = [0]
Conditions: none
Exponent0 means derivative0 in this coordinate,without omitting other coordinates.
Step identifiers and dependencies
Rule: Gradient_constant_in_coordinate_derivative_zero · Uses: G001, S008
S010 · implies
Before
source roles = [0, 1, [0, 1], 4]
After
derived = [0]
Conditions: none
Exponent0 means derivative0 in this coordinate,without omitting other coordinates.
Step identifiers and dependencies
Rule: Gradient_constant_in_coordinate_derivative_zero · Uses: G001, S009
S011 · calculation
Before
Gradient axis0 term2 power-rule coefficient := mul(3, 2)
After
Gradient axis0 term2 power-rule coefficient = 6
Conditions: none
Substitute original roles and established intermediates exactly;check nonzero denominators and do not round.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S010
S012 · calculation
Before
Gradient axis0 derivative combine2 := sum(0, 6)
After
Gradient axis0 derivative combine2 = 6
Conditions: none
Substitute original roles and established intermediates exactly;check nonzero denominators and do not round.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S011
S013 · implies
Before
source roles = [0, 2, [2, 1], 3, 2]
After
derived = [[1, 1], 6]
Conditions: none
Hold the other variables fixed:the coefficient becomes ck and only this coordinate exponent decreases by1.
Step identifiers and dependencies
Rule: Gradient_coordinate_power_rule_ordered_exponents · Uses: G001, S012
S014 · implies
Before
source roles = [1, 0, [0, 0], 1]
After
derived = [0]
Conditions: none
Exponent0 means derivative0 in this coordinate,without omitting other coordinates.
Step identifiers and dependencies
Rule: Gradient_constant_in_coordinate_derivative_zero · Uses: G001, S013
S015 · calculation
Before
Gradient axis1 term1 power-rule coefficient := mul(4, 1)
After
Gradient axis1 term1 power-rule coefficient = 4
Conditions: none
Substitute original roles and established intermediates exactly;check nonzero denominators and do not round.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S014
S016 · calculation
Before
Gradient axis1 derivative combine1 := sum(0, 4)
After
Gradient axis1 derivative combine1 = 4
Conditions: none
Substitute original roles and established intermediates exactly;check nonzero denominators and do not round.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S015
S017 · implies
Before
source roles = [1, 1, [0, 1], 4, 1]
After
derived = [[0, 0], 4]
Conditions: none
Hold the other variables fixed:the coefficient becomes ck and only this coordinate exponent decreases by1.
Step identifiers and dependencies
Rule: Gradient_coordinate_power_rule_ordered_exponents · Uses: G001, S016
S018 · calculation
Before
Gradient axis1 term2 power-rule coefficient := mul(3, 1)
After
Gradient axis1 term2 power-rule coefficient = 3
Conditions: none
Substitute original roles and established intermediates exactly;check nonzero denominators and do not round.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S017
S019 · calculation
Before
Gradient axis1 derivative combine2 := sum(0, 3)
After
Gradient axis1 derivative combine2 = 3
Conditions: none
Substitute original roles and established intermediates exactly;check nonzero denominators and do not round.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S018
S020 · implies
Before
source roles = [1, 2, [2, 1], 3, 1]
After
derived = [[2, 0], 3]
Conditions: none
Hold the other variables fixed:the coefficient becomes ck and only this coordinate exponent decreases by1.
Step identifiers and dependencies
Rule: Gradient_coordinate_power_rule_ordered_exponents · Uses: G001, S019
S021 · implies
Before
source roles = [2, [[1, [0, 0]], [4, [0, 1]], [3, [2, 1]]]]
After
derived = [[[[6, [1, 1]]], [[4, [0, 0]], [3, [2, 0]]]]]
Conditions: none
The gradient contains all d ordered component polynomials.Polynomial differentiability makes this Euclidean vector represent the differential,not a sampled single direction.
Step identifiers and dependencies
Rule: Gradient_ALL_ordered_coordinate_polynomials · Uses: G001, S020
Result
(2, [[1, [0, 0]], [4, [0, 1]], [3, [2, 1]]], [[[6, [1, 1]]], [[4, [0, 0]], [3, [2, 0]]]], standard_Euclidean_coordinate_order_preserved)
The full substitutions and premise checks give the original answer; source identity,format and status are unchanged.