The parameters of the machine learning model for eqn (3).
| Parameters | CuSO4 | Fe3+ ion |
|---|---|---|
| B | −11.67194794 | 258.03961 |
| A 1 | 0.1749725058769363 | 18.918431692320038 |
| A 2 | −0.8659853255560485 | 2.3887664791957213 |
| A 3 | 0.09558946035564549 | 3.018478950326897 |
| A 4 | 0.25728815135808075 | −12.756884811298555 |
| A 5 | 0.14611200674974775 | 1.0676268307155141 |
| A 6 | 0.6633898919692821 | −16.484926316415734 |
| A 7 | −0.0029225413551885746 | 0.5362284337472314 |
| A 8 | −0.02300907284385169 | −1.8121682896367453 |
| A 9 | 0.023310157395674134 | −1.625810063272214 |
| A 10 | 0.0044665653250014845 | −1.050626267391651 |
| A 11 | −0.022848946883847206 | 1.8510867458015794 |
| A 12 | 0.0223940371249181 | 1.4279649782837482 |
| A 13 | 0.01868896020592669 | 2.051594167885635 |
| A 14 | −0.034996010159643945 | −0.1163897021906569 |
| A 15 | 0.03250105403235272 | 1.9882705177771514 |
| A 16 | 0.03644820329411289 | −0.9739092392704912 |
| A 17 | −0.03845392009176146 | −3.1062507819007705 |
| A 18 | −0.10714238706694611 | 0.556601441321064 |
| A 19 | −0.020293607203989122 | 1.9732038182084808 |
| A 20 | 0.21716408527928446 | −0.9955983036842209 |
| A 21 | 0.03025398359255365 | −0.24395525445843377 |
| A 22 | −0.003966909407306939 | 0.6050224958128079 |
| A 23 | 0.018379714598367163 | −2.284755734470818 |
| A 24 | −0.03128443711780003 | −1.678320747941534 |
| A 25 | −0.10925068557748736 | 0.5307519637416704 |
| A 26 | −0.03317336821218308 | 1.1676053587550543 |
| A 27 | 0.020511778996520742 | 1.2271310727686446 |