www/includes/formulas.php@93a0be4f5be3 (annotated)
www/includes/formulas.php
Fri, 28 Sep 2018 17:29:23 +0200
- author
- Michiel Broek <mbroek@mbse.eu>
- date
- Fri, 28 Sep 2018 17:29:23 +0200
- changeset 72
- 93a0be4f5be3
- parent 11
- d341f0a91a91
- child 83
- 85521c6e0022
- permissions
- -rw-r--r--
Added category and type to the recipe style. Added tooltips in the edit screen. Added Alcohol and Carbonation to the recipe style. Redesigned the main edit window and added the style limits.
| 11 | 1 | <?php |
| 2 | ||
| 3 | ||
| 4 | function ebc_to_srm($ebc) | |
| 5 | { | |
| 6 | // Srm = -1.32303E-12*Ebc4-0.00000000291515*Ebc3+0.00000818515*Ebc2+0.372038*Ebc+0.596351 | |
| 7 | return -1.32303E-12 * pow($ebc, 4) - 0.00000000291515 * pow($ebc, 3) + 0.00000818515 * pow($ebc, 2) + 0.372038 * $ebc + 0.596351; | |
| 8 | // return $ebc * 0.508; | |
| 9 | } | |
| 10 | ||
| 11 | ||
| 12 | function srm_to_ebc($srm) | |
| 13 | { | |
| 14 | // EBC = 0.000000000176506*Srm4+ 0.000000154529*Srm3-0.000159428*Srm2+2.68837*Srm-1.6004 | |
| 15 | // | |
| 16 | // Formule van Adrie Otten. brouwhulp. | |
| 17 | $ebc = 0.000000000176506 * pow($srm, 4) + 0.000000154529 * pow($srm, 3) - 0.000159428 * pow($srm, 2) + 2.68837 * $srm - 1.6004; | |
| 18 | return round($ebc); | |
| 19 | } | |
| 20 | ||
| 21 | ||
| 22 | ?> |
