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round -- round a number

Description

Synopsis

Usage:

round x
Inputs:
- x, a number
Outputs:
- the integer nearest to x

i1 : round(-2.3)

o1 = -2

i2 : round(-2.3+5*ii)

o2 = -2

i3 : round(2/3)

o3 = 1

Synopsis

Usage:

round(n,x)
Inputs:
- n, an integer
- x, a real number
Outputs:
- the real number with just n decimal digits to the right of the decimal point nearest to x

i4 : round(2,1234.5678)

o4 = 1234.57

o4 : RR (of precision 53)

i5 : round(-2,1234.5678)

o5 = 1200

o5 : RR (of precision 53)

See also

floor -- floor function
ceiling -- ceiling function

Ways to use round :

round(CC)
round(QQ)
round(RR)
round(ZZ)
round(ZZ,RR)
round(Constant) (missing documentation)

For the programmer

The object round is a method function.