[tlaplus] PlusCal algorithm for pH for Smart Agriculture

--fair algorithm pHcalculation {
variables
ph \in 0..14; \* pH variable ranging from 0 to 14
classification; \* Variable to store the classification
{
process:
\* Check for different pH ranges and assign classification accordingly
if (ph < 0) {
classification := "Invalid pH value";
} else if (ph < 1) {
classification := "Extremely acidic";
} else if (ph < 2) {
classification := "Strongly acidic";
} else if (ph < 3) {
classification := "Acidic";
} else if (ph < 4) {
classification := "Moderately acidic";
} else if (ph < 5) {
classification := "Weakly acidic";
} else if (ph < 6) {
classification := "Slightly acidic";
} else if (ph = 6) {
classification := "Neutral (water)";
} else if (ph < 7) {
classification := "Slightly alkaline";
} else if (ph < 8) {
classification := "Weakly alkaline";
} else if (ph < 9) {
classification := "Alkaline";
} else if (ph < 10) {
classification := "Moderately alkaline";
} else if (ph < 11) {
classification := "Strongly alkaline";
} else if (ph < 12) {
classification := "Very strongly alkaline";
} else if (ph < 13) {
classification := "Extremely alkaline";
} else if (ph <= 14) {
classification := "Super alkaline";
} else {
classification := "Invalid pH value";
}
}
}
***************************************************************************)