cf.Data.sin

Data.sin(inplace=False, i=False)[source]

Take the trigonometric sine of the data element-wise.

Units are accounted for in the calculation. If the units are not equivalent to radians (such as Kelvin) then they are treated as if they were radians. For example, the sine of 90 degrees_east is 1.0, as is the sine of 1.57079632 radians.

The output units are changed to ‘1’ (nondimensional).

See also

arcsin, cos, tan, sinh

Parameters
inplace: bool, optional

If True then do the operation in-place and return None.

i: deprecated at version 3.0.0

Use the inplace parameter instead.

Returns

Data or None

Examples

>>> d.Units
<Units: degrees_north>
>>> print(d.array)
[[-90 0 90 --]]
>>> e = d.sin()
>>> e.Units
<Units: 1>
>>> print(e.array)
[[-1.0 0.0 1.0 --]]

>>> d.Units
<Units: m s-1>
>>> print(d.array)
[[1 2 3 --]]
>>> d.sin(inplace=True)
>>> d.Units
<Units: 1>
>>> print(d.array)
[[0.841470984808 0.909297426826 0.14112000806 --]]