# Cos

```block Cos "Output the cosine of the input"
equation
y = Modelica.Math.cos(u);

annotation (
Icon(
coordinateSystem(
preserveAspectRatio = true,
extent = {
{-100, -100},
{100, 100}}),
graphics = {
Polygon(
points = {
{-80, 90},
{-88, 68},
{-72, 68},
{-80, 90}},
lineColor = {192, 192, 192},
fillColor = {192, 192, 192},
fillPattern = FillPattern.Solid),
Line(
points = {
{-80, -80},
{-80, 68}},
color = {192, 192, 192}),
Line(
points = {
{-90, 0},
{68, 0}},
color = {192, 192, 192}),
Polygon(
points = {
{90, 0},
{68, 8},
{68, -8},
{90, 0}},
lineColor = {192, 192, 192},
fillColor = {192, 192, 192},
fillPattern = FillPattern.Solid),
Line(
points = {
{-80, 80},
{-74.4, 78.1},
{-68.7, 72.3},
{-63.1, 63},
{-56.7, 48.7},
{-48.6, 26.6},
{-29.3, -32.5},
{-22.1, -51.7},
{-15.7, -65.3},
{-10.1, -73.8},
{-4.42, -78.8},
{1.21, -79.9},
{6.83, -77.1},
{12.5, -70.6},
{18.1, -60.6},
{24.5, -45.7},
{32.6, -23},
{50.3, 31.3},
{57.5, 50.7},
{63.9, 64.6},
{69.5, 73.4},
{75.2, 78.6},
{80, 80}},
smooth = Smooth.Bezier),
Text(
extent = {
{-36, 82},
{36, 34}},
lineColor = {192, 192, 192},
textString = "cos")}),
Diagram(
coordinateSystem(
preserveAspectRatio = true,
extent = {
{-100, -100},
{100, 100}}),
graphics = {
Line(
points = {
{-80, 80},
{-88, 80}},
color = {192, 192, 192}),
Line(
points = {
{-80, -80},
{-88, -80}},
color = {192, 192, 192}),
Line(
points = {
{-80, -90},
{-80, 84}},
color = {192, 192, 192}),
Text(
extent = {
{-75, 102},
{-48, 82}},
lineColor = {160, 160, 164},
textString = "y"),
Polygon(
points = {
{-80, 100},
{-86, 84},
{-74, 84},
{-80, 100}},
lineColor = {192, 192, 192},
fillColor = {192, 192, 192},
fillPattern = FillPattern.Solid),
Text(
extent = {
{-103, 72},
{-83, 88}},
textString = "1",
lineColor = {0, 0, 255}),
Text(
extent = {
{-79, -72},
{-59, -88}},
textString = "-1",
lineColor = {0, 0, 255}),
Text(
extent = {
{70, 25},
{90, 5}},
textString = "2*pi",
lineColor = {0, 0, 255}),
Line(
points = {
{-100, 0},
{84, 0}},
color = {192, 192, 192}),
Polygon(
points = {
{100, 0},
{84, 6},
{84, -6},
{100, 0}},
lineColor = {192, 192, 192},
fillColor = {192, 192, 192},
fillPattern = FillPattern.Solid),
Line(points = {
{-80, 80},
{-74.4, 78.1},
{-68.7, 72.3},
{-63.1, 63},
{-56.7, 48.7},
{-48.6, 26.6},
{-29.3, -32.5},
{-22.1, -51.7},
{-15.7, -65.3},
{-10.1, -73.8},
{-4.42, -78.8},
{1.21, -79.9},
{6.83, -77.1},
{12.5, -70.6},
{18.1, -60.6},
{24.5, -45.7},
{32.6, -23},
{50.3, 31.3},
{57.5, 50.7},
{63.9, 64.6},
{69.5, 73.4},
{75.2, 78.6},
{80, 80}}),
Text(
extent = {
{74, -4},
{98, -24}},
lineColor = {160, 160, 164},
textString = "u")}),
Documentation(info = "<html>\n<p>\nThis blocks computes the output <strong>y</strong>\nas <strong>cos</strong> of the input <strong>u</strong>:\n</p>\n<pre>\n    y = <strong>cos</strong>( u );\n</pre>\n\n<p>\n<img src=\"modelica://Modelica/Resources/Images/Math/cos.png\"\n     alt=\"cos.png\">\n</p>\n\n</html>"));
end Cos;

```