Python matemātikas modulis satur vairākas matemātiskas darbības, kuras var viegli veikt, izmantojot moduli. math.cos()>funkcija atgriež vērtības kosinusu, kas nodots kā arguments. Šajā funkcijā nodotajai vērtībai ir jābūt radiānos.
Sintakse: math.cos(x)
Parametrs:
x : vērtība, kas jānodod uz cos()
Atgriež: Atgriež vērtības kosinusu, kas nodots kā arguments
Kods #1:
virknes apakšvirkne
# Python code to demonstrate the working of cos()> > # importing 'math' for mathematical operations> import> math> > a>=> math.pi>/> 6> > # returning the value of cosine of pi / 6> print> (>'The value of cosine of pi / 6 is : '>, end>=>'')> print> (math.cos(a))> |
>
>Izvade:
The value of cosine of pi/6 is : 0.8660254037844387>
Kods #2:
# Python program showing> # Graphical representation of> # cos() function> import> math> import> numpy as np> import> matplotlib.pyplot as plt> > in_array>=> np.linspace(>->(>2> *> np.pi),>2> *> np.pi,>20>)> > out_array>=> []> > for> i>in> range>(>len>(in_array)):> >out_array.append(math.cos(in_array[i]))> >i>+>=> 1> > > print>(>'in_array : '>, in_array)> print>(>'
out_array : '>, out_array)> > # red for numpy.sin()> plt.plot(in_array, out_array, color>=> 'red'>, marker>=> 'o'>)> plt.title(>'math.cos()'>)> plt.xlabel(>'X'>)> plt.ylabel(>'Y'>)> plt.show()> |
oops jēdzieni java
>
>Izvade:
in_masīvs : [-6,28318531 -5,62179738 -4,96040945 -4,29902153 -3,6376336 -2,97624567
-2,31485774 -1,65346982 -0,99208189 -0,33069396 0,33069396 0,99208189
1,65346982 2,31485774 2,97624567 3,6376336 4,29902153 4,96040945
5,62179738 6,28318531]Out_Array: [1,0, 0.7891405093963934, 0.2454854871407988, -0.40169542465296987, -0.8794737512064891, -0.9863613027223232323232727777777772815717127272323232323223.āju - 0.08257934547233249, 0.5469481581224268, 0.9458172417006346, 0.9458172417006346, 0.5469481581224268, -0.08257934547233316. 57405, -0.9863613034027223, -0,8794737512064893, -0,40169542465296987, 0.2454854871407988, 0.7891405093963934407988, 0.789140509396393444407988, 0.789140509396393444407988 , 1,0]
