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Different uses of cosine function in Julia – cospi() and cosc() Method
• Last Updated : 21 Apr, 2020

The cospi() is an inbuilt function in julia which is used to compute the value of which is more accurately than , where x is the large value.

Syntax: cospi(x)

Parameters:

• x: Specified large value.

Returns: It returns the value of which is more accurately than .

Example:

 # Julia program to illustrate # the use of cospi() method  # Getting the value of cos(pi x)println(cospi(55))println(cospi(22.7))println(cospi(3.17))println(cospi(22 / 7))

Output:

-1.0
-0.5877852522924714
-0.8607420270039438
-0.9009688679024193


#### cosc()

The cosc() is an inbuilt function in julia which is used to compute the value of which is the derivative of sinc(x).

Syntax: cosc(x)

Parameters:

• x: Specified value.

Returns: It returns the value of .

Example:

 # Julia program to illustrate # the use of cosc() method  # Getting the value of cos(pi x)/x-sin(pi x)/(pi x ^ 2)println(cosc(0))println(cosc(1))println(cosc(3.14))println(cosc(22 / 7))

Output:

0.0
-1.0
-0.27441551248588253
-0.2726897540491998


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