grafana/docs/sources/shared/alerts/math-example.md

labels	title
products oss	Math example

• $A returns series {host="web01"} 30 and {host="web02"} 20.
• $B returns series {host="web01"} 10 and {host="web02"} 0.
• $A + $B returns {host="web01"} 40 and {host="web02"} 20.