sin() math function to get sin of input number in radian in Python

sin(x) returns sin x. Input number is in radian

import math
print(math.sin(1))       # 0.8414709848078965
print(math.sin(0.56))    # 0.5311861979208834
print(math.sin(-0.56))   # -0.5311861979208834
print(math.sin(-1))      # -0.8414709848078965
print(math.sin(0))       # 0.0
print(math.sin(math.pi)) # 1.2246467991473532e-16

Note that all the inputs are in radian.

Inputs in degree

We can convert radian value to degree and use the same

import math
in_degree = 90
in_redian = math.radians(in_degree)
print(math.sin(in_redian))     # 1.0

1 radian = 57.2957914331 degree
1 degree = 0.0174533 radian

Drawing graph of sin()

Using this we will use Matplotlib to generate graph of sin $sin graph$

import matplotlib.pyplot as plt
x=[]
y=[]
i=0
while (i<=8):
    x.append(i)
    y.append(math.sin(i))
    i=i+0.1
plt.plot(x,y)
plt.axvline(x=0.00,linewidth=2, color='#f1f1f1')
plt.axhline(y=0.00,linewidth=2, color='#f1f1f1')
plt.grid(linestyle='-', linewidth=0.5,color='#f1f1f1')
plt.show()

acos() asin() cos() tan()
Drawing sin and cos curves on Tkinter Canvas

Math Functions copysign() Python- Tutorials

Subhendu Mohapatra

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