Topic · 6 of 8 editions · peak 693 chars
BIQUADRATIC EQUATION
1st2nd3rd4th5th6th7th8th
| Edition | As printed | Type | Chars | Location | vs. previous |
|---|---|---|---|---|---|
| 2nd ed. (1778–83) | BIQUADRATIC POWER, ROOT, EQUATION, &c | cross-reference | 51 | vol. 2, p. 1156 | |
| 3rd ed. (1797) | ① BIQUADRATIC EQUATION | article | 210 | vol. 3, p. 232 | |
| 3rd ed. (1797) | ② BIQUADRATIC ROOT OF ANY NUMBER | article | 186 | vol. 3, p. 232 | |
| 3rd ed. (1797) | ③ BIQUADRATIC POWER OF ANY NUMBER | article | 166 | vol. 3, p. 232 | |
| 3rd ed. (1797) | ④ BIQUADRATIC PARABOLA | article | 128 | vol. 3, p. 232 | |
| 4th ed. (1810) | ① BIQUADRATIC EQUATION | article | 693 | vol. 3, p. 619 | substantially revised · J 0.34 |
| 5th ed. (1815) | ① BIQUADRATIC EQUATION | article | 673 | vol. 3, p. 619 | reprint · J 0.91 |
| 6th ed. (1823) | ① BIQUADRATIC EQUATION | article | 693 | vol. 3, p. 619 | reprint · J 0.91 |
| 7th ed. (1842) | ① BIQUADRATIC EQUATION | article | 220 | vol. 4, p. 644 | substantially revised · J 0.34 |
| 7th ed. (1842) | ② BIQUADRATIC Root of any number | sub_entry | 185 | vol. 4, p. 645 | reprint · J 1.00 |
| 7th ed. (1842) | ③ BIQUADRATIC Power of any number | sub_entry | 166 | vol. 4, p. 644 | reprint · J 1.00 |
| 7th ed. (1842) | ⑤ BIQUADRATIC Parabola | sub_entry | 114 | vol. 4, p. 644 | |
| 8th ed. (1853–60) | ① BIQUADRATIC EQUATION | article | 208 | vol. 4, p. 726 | revised · J 0.86 |
| 8th ed. (1853–60) | ② BIQUADRATIC Root of any number | sub_entry | 185 | vol. 4, p. 726 | reprint · J 1.00 |
| 8th ed. (1853–60) | ③ BIQUADRATIC Power of any number | sub_entry | 165 | vol. 4, p. 726 | reprint · J 1.00 |
| 8th ed. (1853–60) | ⑥ BIQUADRATIC Parabola | sub_entry | 114 | vol. 4, p. 726 |