Step-by-step derivation
S001 · implies
Before
explicit real polynomial moment or constant integrand model
After
oriented I(a,b)=H(b)−H(a);do not sort endpoints
Conditions: none
Real polynomials are continuous and integrable;use termwise primitive endpoint differences for exact oriented integrals,not absolute area or a finite sum.
Step identifiers and dependencies
Rule: polynomial_moment_scope · Uses: G001
S002 · calculation
Before
I(a,b) primitive coefficient1 := div(3, 1)
After
I(a,b) primitive coefficient1 = 3
Conditions: none
The primitive coefficient for c·x^k is c/(k+1),with positive nonzero k+1.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S001
S003 · implies
Before
[0, 3]
After
H′=the supplied polynomial;integrate from 3 to -1
Conditions: none
Termwise differentiation recovers the original coefficients;the integration constant cancels in the endpoint difference.
Step identifiers and dependencies
Rule: polynomial_primitive_identity · Uses: G001, S002
S004 · implies
Before
I(a,b) H(b) ascending coefficients=[0, 3]
After
evaluate at x=-1
Conditions: none
Evaluate ascending coefficients by Horner from the highest nonzero term down;ignoring redundant top zero terms changes neither the function nor the retained original list.
Step identifiers and dependencies
Rule: polynomial_evaluation_order · Uses: G001, S003
S005 · calculation
Before
I(a,b) H(b) Horner multiply before degree0 := mul(3, -1)
After
I(a,b) H(b) Horner multiply before degree0 = -3
Conditions: none
Multiply by the same evaluation point first.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S004
S006 · calculation
Before
I(a,b) H(b) Horner add degree0 := sum(-3, 0)
After
I(a,b) H(b) Horner add degree0 = -3
Conditions: none
Then add the full coefficient at this position.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S005
S007 · implies
Before
I(a,b) H(a) ascending coefficients=[0, 3]
After
evaluate at x=3
Conditions: none
Evaluate ascending coefficients by Horner from the highest nonzero term down;ignoring redundant top zero terms changes neither the function nor the retained original list.
Step identifiers and dependencies
Rule: polynomial_evaluation_order · Uses: G001, S006
S008 · calculation
Before
I(a,b) H(a) Horner multiply before degree0 := mul(3, 3)
After
I(a,b) H(a) Horner multiply before degree0 = 9
Conditions: none
Multiply by the same evaluation point first.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S007
S009 · calculation
Before
I(a,b) H(a) Horner add degree0 := sum(9, 0)
After
I(a,b) H(a) Horner add degree0 = 9
Conditions: none
Then add the full coefficient at this position.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S008
S010 · calculation
Before
I(a,b) oriented moment := sub(-3, 9)
After
I(a,b) oriented moment = -12
Conditions: none
Subtract the starting primitive value from the ending value;reversing endpoints naturally reverses the sign.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S009
S011 · calculation
Before
I(b,c) primitive coefficient1 := div(3, 1)
After
I(b,c) primitive coefficient1 = 3
Conditions: none
The primitive coefficient for c·x^k is c/(k+1),with positive nonzero k+1.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S010
S012 · implies
Before
[0, 3]
After
H′=the supplied polynomial;integrate from -1 to 2
Conditions: none
Termwise differentiation recovers the original coefficients;the integration constant cancels in the endpoint difference.
Step identifiers and dependencies
Rule: polynomial_primitive_identity · Uses: G001, S011
S013 · implies
Before
I(b,c) H(b) ascending coefficients=[0, 3]
After
evaluate at x=2
Conditions: none
Evaluate ascending coefficients by Horner from the highest nonzero term down;ignoring redundant top zero terms changes neither the function nor the retained original list.
Step identifiers and dependencies
Rule: polynomial_evaluation_order · Uses: G001, S012
S014 · calculation
Before
I(b,c) H(b) Horner multiply before degree0 := mul(3, 2)
After
I(b,c) H(b) Horner multiply before degree0 = 6
Conditions: none
Multiply by the same evaluation point first.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S013
S015 · calculation
Before
I(b,c) H(b) Horner add degree0 := sum(6, 0)
After
I(b,c) H(b) Horner add degree0 = 6
Conditions: none
Then add the full coefficient at this position.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S014
S016 · implies
Before
I(b,c) H(a) ascending coefficients=[0, 3]
After
evaluate at x=-1
Conditions: none
Evaluate ascending coefficients by Horner from the highest nonzero term down;ignoring redundant top zero terms changes neither the function nor the retained original list.
Step identifiers and dependencies
Rule: polynomial_evaluation_order · Uses: G001, S015
S017 · calculation
Before
I(b,c) H(a) Horner multiply before degree0 := mul(3, -1)
After
I(b,c) H(a) Horner multiply before degree0 = -3
Conditions: none
Multiply by the same evaluation point first.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S016
S018 · calculation
Before
I(b,c) H(a) Horner add degree0 := sum(-3, 0)
After
I(b,c) H(a) Horner add degree0 = -3
Conditions: none
Then add the full coefficient at this position.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S017
S019 · calculation
Before
I(b,c) oriented moment := sub(6, -3)
After
I(b,c) oriented moment = 9
Conditions: none
Subtract the starting primitive value from the ending value;reversing endpoints naturally reverses the sign.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S018
S020 · calculation
Before
I(a,c) primitive coefficient1 := div(3, 1)
After
I(a,c) primitive coefficient1 = 3
Conditions: none
The primitive coefficient for c·x^k is c/(k+1),with positive nonzero k+1.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S019
S021 · implies
Before
[0, 3]
After
H′=the supplied polynomial;integrate from 3 to 2
Conditions: none
Termwise differentiation recovers the original coefficients;the integration constant cancels in the endpoint difference.
Step identifiers and dependencies
Rule: polynomial_primitive_identity · Uses: G001, S020
S022 · implies
Before
I(a,c) H(b) ascending coefficients=[0, 3]
After
evaluate at x=2
Conditions: none
Evaluate ascending coefficients by Horner from the highest nonzero term down;ignoring redundant top zero terms changes neither the function nor the retained original list.
Step identifiers and dependencies
Rule: polynomial_evaluation_order · Uses: G001, S021
S023 · calculation
Before
I(a,c) H(b) Horner multiply before degree0 := mul(3, 2)
After
I(a,c) H(b) Horner multiply before degree0 = 6
Conditions: none
Multiply by the same evaluation point first.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S022
S024 · calculation
Before
I(a,c) H(b) Horner add degree0 := sum(6, 0)
After
I(a,c) H(b) Horner add degree0 = 6
Conditions: none
Then add the full coefficient at this position.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S023
S025 · implies
Before
I(a,c) H(a) ascending coefficients=[0, 3]
After
evaluate at x=3
Conditions: none
Evaluate ascending coefficients by Horner from the highest nonzero term down;ignoring redundant top zero terms changes neither the function nor the retained original list.
Step identifiers and dependencies
Rule: polynomial_evaluation_order · Uses: G001, S024
S026 · calculation
Before
I(a,c) H(a) Horner multiply before degree0 := mul(3, 3)
After
I(a,c) H(a) Horner multiply before degree0 = 9
Conditions: none
Multiply by the same evaluation point first.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S025
S027 · calculation
Before
I(a,c) H(a) Horner add degree0 := sum(9, 0)
After
I(a,c) H(a) Horner add degree0 = 9
Conditions: none
Then add the full coefficient at this position.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S026
S028 · calculation
Before
I(a,c) oriented moment := sub(6, 9)
After
I(a,c) oriented moment = -3
Conditions: none
Subtract the starting primitive value from the ending value;reversing endpoints naturally reverses the sign.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S027
S029 · calculation
Before
adjacent oriented moment sum := sum(-12, 9)
After
adjacent oriented moment sum = -3
Conditions: none
H(b) cancels between endpoint differences,so a≤b≤c is not required.
Step identifiers and dependencies
Rule: exact_rational_arithmetic · Uses: G001, S028
S030 · implies
Before
[H(b)−H(a)]+[H(c)−H(b)]
After
H(c)−H(a)=-3
Conditions: none
This algebraic cancellation works for any endpoint order;negative integrals are not replaced by positive area.
Step identifiers and dependencies
Rule: oriented_integral_additivity · Uses: G001, S029