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Python sin () function

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description

sin () returns the sine of x radians.


grammar

The following is the syntax sin () method:

import math

math.sin(x)

Note: sin () is not directly accessible, you need to import math module, and then call the method by math static objects.


parameter

  • x - a value.

return value

Returns the sine of x radians values ​​between -1 and 1.


Examples

The following shows an example of using sin () method:

#!/usr/bin/python
import math

print "sin(3) : ",  math.sin(3)
print "sin(-3) : ",  math.sin(-3)
print "sin(0) : ",  math.sin(0)
print "sin(math.pi) : ",  math.sin(math.pi)
print "sin(math.pi/2) : ",  math.sin(math.pi/2)

After running the above example output is:

sin(3) :  0.14112000806
sin(-3) :  -0.14112000806
sin(0) :  0.0
sin(math.pi) :  1.22460635382e-16
sin(math.pi/2) :  1

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