docs/usersguide/value.md
# 1. BdlValue, bdl-value
`<bdl-value>` renders numerical value
* `fromid='id4'` ID of component which will be listened for events `fmidata`
* `refindex=8` reference index of value sent by `fmidata` event
* `convertors="1,1,0"` conversion to count visible value in form numerator,denominator,addend x*num/den+add, or in form of
algebraic expression with `x` determine value to be recounted: e.g.:`x*265+Math.sin(x)`
* `precision=4` precision the value is presented, e.g. value from model `1.23456789` is presented as `1.234`.
## Example
`<bdl-value fromid="id4" refindex="8"></bdl-value>`
<bdl-value fromid="id4" refindex="8"></bdl-value>