Python - math.sin() method example

import math

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print(math.sin(0))                    # 0   <-     0 degrees

print(math.sin(1.5707963267948966))   # ~1  <-   ~90 degrees ==  pi / 2

print(math.sin(3.1415926535897932))   # ~0  <-  ~180 degrees ==  pi

print(math.sin(4.71238898038469))     # ~-1 <-  ~270 degrees == -pi * (3/2)

print(math.sin(6.2831853071795850))   # ~0  <-  ~360 degrees ==  pi * 2

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print(math.sin(-1.5707963267948966))  # ~-1 <-  ~-90 degrees == -pi / 2

import math

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x1 = 0.0            # beginning of calculation in radians

x2 = math.pi / 2    # ending of calculation radians

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dx = math.pi / 9    # calculation step in degrees

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rad = x1

while rad <= x2:

    y = math.sin(rad)

    print("sin(", rad, "rad ) =", y)

    rad += dx

sin(0 rad) = 0

sin(0.3490658503988659 rad) = 0.3420201433256687

sin(0.6981317007977318 rad) = 0.6427876096865393

sin(1.0471975511965976 rad) = 0.8660254037844386

sin(1.3962634015954636 rad) = 0.984807753012208

import math

​

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def calculate_sin(deg):

    radians = (math.pi / 180) * deg

    return math.sin(radians)

​

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# Example:

x1 = 0.0   # beginning of calculation in degrees

x2 = 90.0  # ending of calculation degrees

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dx = 15.0  # calculation step in degrees

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deg = x1

while deg <= x2:

    y = calculate_sin(deg)

    print("sin(", deg, " deg) = ", y)

    deg += dx

sin(0 deg) = 0

sin(15 deg) = 0.25881904510252074

sin(30 deg) = 0.49999999999999994

sin(45 deg) = 0.7071067811865476

sin(60 deg) = 0.8660254037844386

sin(75 deg) = 0.9659258262890683

sin(90 deg) = 1

import math

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x1 = 0.0       # beginning of sine chart

x2 = 2 * 3.14  # end of sine chart

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dx = 3.14 / 4.0  # x axis step

dy = 1.0 / 5.0   # y axis step

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rad = x1

while rad < x2:

    y1 = 0.0

    y2 = math.sin(rad) + 1

    line = ""

​

    y = y1

    while y < y2:

        line += " "

        y += dy

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    print(line, "+")

    rad += dx

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