Go to the first, previous, next, last section, table of contents.
 ntype(num)

:: Classifier of type num. Returns a subtype number, an integer, for obj.
 return

integer
 obj

number

Subtypes for type number are listed below.
 0

rational number
 1

floating double (double precision floating point number)
 2

algebraic number over rational number field
 3

arbitrary precision floating point number (bigfloat)
 4

complex number
 5

element of a finite field
 6

element of a large finite prime field
 7

element of a finite field of characteristic 2

When arithmetic operations for numbers are performed,
type coercion will be taken if their number subtypes are different
so that the object having smaller subtype number will be transformed
to match the other object, except for algebraic numbers.

A number object created by
newalg(x^2+1)
and the unit of
imaginary number @i
have different number subtypes, and
it is treated independently.

See section Algebraic numbers for algebraic numbers.
[0] [10/37,ntype(10/37)];
[10/37,0]
[1] [10.0/37.0,ntype(10.0/37.0)];
[0.27027,1]
[2] [newalg(x^2+1)+1,ntype(newalg(x^2+1)+1)];
[(#0+1),2]
[3] [eval(sin(@pi/6)),ntype(eval(sin(@pi/6)))];
[0.49999999999999999991,3]
[4] [@i+1,ntype(@i+1)];
[(1+1*@i),4]
 References

section
type
.
Go to the first, previous, next, last section, table of contents.