[GRASS5] r.mapcalc and float()

[Markus Neteler]

Hi,

while calculating the NDVI I found following r.mapcalc
behaviour:

r.mapcalc "ndvi=float((lsat.4 - lsat.3)/(lsat.4+lsat.3))"
r.info -r ndvi
min=0.000000
max=0.000000

 -> not desired

r.mapcalc "ndvi=float(1.0* (lsat.4 - lsat.3)/(lsat.4+lsat.3))"
r.info -r ndvi
min=-0.473684
max=0.672727

 -> looks fine, but multiplication with 1. required

Is there a chance to change r.mapcalc to produce float
when using float()?

Thanks

 Markus