Attention

IronPLC implements many parts of the IEC 61131-3 standard and is working toward full Structured Text support. Key features still missing include arrays and structures. Try it out in the IronPLC Playground.

COS

Returns the cosine of an angle in radians.

IEC 61131-3

Section 2.5.1.5.2

Support

Supported

Signatures

#

Input (IN)

Return Type

Support

1

REAL

REAL

Supported

2

LREAL

LREAL

Supported

Description

Returns the cosine of IN, where IN is an angle expressed in radians. The result is in the range [-1.0, 1.0].

Example

See Also

  • SIN — sine

  • TAN — tangent

  • ACOS — arc cosine