{"schema_version":"ocme-site-results-v1","locale":"en","page_type":"derivations","facts":{"questions":36000,"reviewed":36000,"display_candidates":0,"knowledge":302,"guides":299,"paths":59,"batches":360,"families":1441,"atlas":302,"core":80,"evidence":9,"formal_evidence":5,"formal_subjects":4,"lean_files":6,"lean_toolchain":"leanprover/lean4:v4.30.0","question_state":"candidate","english_state":"ai_candidate","question_Lean":"NOT_RUN","canonical_truth_promotion":false},"filters":{"q":"mko-initial-value-problem"},"kind":"guides","total":1,"pages":1,"page":1,"entries":[{"id":"derivation-mko-initial-value-problem-01","title":{"zh-Hant":"初值問題：逐一審核四個多項式候選","en":"Initial-value problem: auditing four polynomial candidates"},"summary":{"zh-Hant":"初值問題：在 ℝ 上 y''(x)=6x，且 y(0)=1、y'(0)=2。逐一審核四個整係數多項式候選 y_A=x³+2x+1、y_B=x³+1、y_C=x²+2x+1、y_D=3x⁵−15x⁴+21x³+2x+1：分開核對方程殘差與兩個初值，判定哪一個是此初值問題的解，並說明只核初值、只核一個初值、或只在有限網格上核殘差為何都不夠。","en":"Initial-value problem: y''(x)=6x on ℝ with y(0)=1 and y'(0)=2. Audit the four integer-coefficient polynomial candidates y_A=x³+2x+1, y_B=x³+1, y_C=x²+2x+1 and y_D=3x⁵−15x⁴+21x³+2x+1 one by one: check the equation residual and the two initial values separately, decide which candidate solves this initial-value problem, and explain why checking only the initial data, only one initial value, or the residual only on a finite grid is not enough."},"mko_ids":["mko-initial-value-problem"]}],"title":"Concept derivation guides"}