Mapping Toolbox

roundn

Round numbers at specified powers of 10

Syntax

• outnum = roundn(innum)
  outnum = roundn(innum,n)
  

Description

outnum = roundn(innum) rounds the elements of innum to the nearest one-hundredth.

outnum = roundn(innum,n) specifies the power of 10 to which the elements of innum are rounded. For example, if n = 2, round to the nearest hundred (10²).

Examples

Using generated numbers, round them to significant tenths, ones, and tens figures (note that your original numbers could differ):

• fullfig = 1000*magic(2)/7
  fullfig =
      142.8571  428.5714
      571.4286  285.7143
  
  tenths = roundn(fullfig,-1)
  tenths =
      142.9000  428.6000
      571.4000  285.7000
  
  units = roundn(fullfig,0)
  units =
      143   429
      571   286
  
  tens = roundn(fullfig,1)
  tens =
      140   430
      570   290
  

See Also

epsm	Map precision

rotatetext

rsphere