ɐpɹˈɑːksɪmətli wˈʌn.fˈoːɹ θˈaʊzənd fˈoːɹtiːn, ˈiːtʃ əv wˌɪtʃ ɛkspɹˈɛʃənz ɪz wɪðˌɪn bᵻtwˌiːn zˈiəɹoʊ.zˈiəɹoʊ sˈɪks ænd zˈiəɹoʊ.zˈiəɹoʊ sˈɛvən, ɔːɹ wɪðˌɪn bᵻtwˌiːn fˈoːɹ.fˈaɪv pɚsˈɛnt ænd fˈaɪv.twˈɛnti fˈaɪv pɚsˈɛnt, ʌvðə vˈæljuː wˈʌn.θɹˈiː jˈiːldᵻd baɪ ðə hjuːɹˈɪstɪk fɔːɹ ðæt sˈaɪn wˈeɪv wɛn ɪz mˌʌltɪplˈaɪd baɪ ðə sˈaɪn wˈeɪvz kɹˈɛsttətɹˈɔf pˈiːktəpˈiːk ˈæmplɪtˌuːd ʌv tˈuː.
≈ 1.4014), each of which expressions is within between 0.06 and 0.07, or within between 4.5% and 5.25%, of the value 1.3 yielded by the heuristic for that sine wave when  is multiplied by the sine wave's crest-to-trough (peak-to-peak) amplitude of 2.