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# Math Project Essay

• Submitted by: yangsly
• on October 19, 2013
• Category: Social Issues
• Length: 635 words

Below is an essay on "Math Project" from Anti Essays, your source for research papers, essays, and term paper examples.

2012
Project title:
Trigonometric functions
sly
Mathematics SL

2012
Project title:
Trigonometric functions

Mathematics SL

Introduction
The trigonometric application problems usually involves the practical problems of production, life, military, astronomy, geography and physics, the sun and the moon's gravitational seawater will occur fluctuation, a phenomenon called tidal boat at high tide, under normal circumstances, be allowed to enter fairway, near the dock, and returned to the sea at low tide after unloading, a port water depth y (m) is the time t (unit: when) function, denoted as y = f (t)

Raw data
A seasonal daily time table depth relationship:
Moment | Depth (m) |
0:00 | 5.0 |
3:00 | 7.5 |
6;00 | 5.0 |
9:00 | 2.5 |
12:00 | 5.0 |
15:00 | 7.5 |
18;00 | 5.0 |
21;00 | 2.5 |
24;00 | 5.0 |

1. Lection of a function to approximate water depth of the harbor as a function of time, given the water depth when the whole point of the approximate value (accurate to 0.001).
Moment | 0;00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | 24:00 |
Depth (m) | 5.0 | 7.5 | 5.0 | 2.5 | 5.0 | 7.5 | 5.0 | 2.5 | 5.0 |

With time as the x-axis, the depth as the y-axis, and to delineate the various points in the coordinate system, and is connected with a smooth curve. According to the image, you can consider using the function to find out the relationship between of painting water depth and time.
From the data and the image can be drawn:
y=A sin(ωx＋φ)+h
A =2.5
h=5
φ=0
t=12
t=2p/w=12
w=p/6
y=2.5sin (p/6) X+5
Function is y=2.5sin (p/6)X+5

We can use this function derived formula to calculate the water depth for each hour;
Moment | 0.00 | 1:00 | 2:00 | 3:00 | 4:00 | 5:00 |
Depth (m) | 5.000 | 6.250 | 7.165 | 7.500 | 7.165 | 6.250 |
Moment | 6:00 | 7:00 | 8：00 | 9.00 | 10:00 | 11:00 |
Depth (m) | 5.000 | 3.754 | 2.835 | 2.500 | 2.835 | 3.754 |
Moment | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 |...

• Submitted by: yangsly
• on October 19, 2013
• Category: Social Issues
• Length: 635 words
• Views: 178
• Popularity Rank: 456412
• 1 rating(s)

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Math Project. Anti Essays. Retrieved December 16, 2018, from the World Wide Web: http://parimatch-stavka7.com/free-essays/Math-Project-529663.html

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