A study of mathematical modeling and predicting the current trends of ...
International Journal of Statistics and Applied Mathematics 2017; 2(6): 65-67
ISSN: 2456-1452 Maths 2017; 2(6): 65-67 ? 2017 Stats & Maths Received: 14-09-2017 Accepted: 18-10-2017 Dr. Umesh Kumar Gupta Associate Professor, P.G. Department of Mathematics, M.G.P.G. College, Gorakhpur, Uttar Pradesh, India
Correspondence Dr. Umesh Kumar Gupta Associate Professor, P.G. Department of Mathematics M.G.P.G. College, Gorakhpur, Uttar Pradesh, India
A study of mathematical modeling and predicting the current trends of human population growth in India
Dr. Umesh Kumar Gupta
Abstract The Logistic Growth Model is most effective and plausible tool for data analysis in mathematical modeling, an advanced field of mathematical science. Using this model the purpose of my study is focused on exploring and determining the predict of population growth of India since 2021-2051.
Keywords: Logistic growth model, growth rate, population size
Introduction Mathematics has an important role in real life [3]. It is an exact science that becomes a basis for other sciences and correlate themselves [1]. One of the benefits of differential equations in the
field of demography is to calculate the population in a particular area. So that, need to be tested to see the accuracy of the results [5, 8]. Benefits Logistics model is usually used to predict human population [9], with the projection (prediction) of the population useful in decisionmaking for socio-economic and demographic development [4]. Previous research describes that
predator and prey logistic growth models can be used as a solution population model equilibrium [6], the population model can be modeled using the Verhulst model and its limits to determine unlimited population growth [7], as an alternative computationally reliable for problem population solving [2].
In this study the logistic growth model was used in modeling the India population growth,
employing the data during 1991 ? 2011. From the study, it is calculated that the carrying capacity for the population of India is 2051 06 ? 106 and the growth rate is 3 57% per
annum. The study was presented to explore and apply logistic equation as a mathematical
model.
Mathematical Model The population growth not only depend how to increase of our population size but also on how this size is far from its upper limit. Let () be the population for size at time . Then the population growth model will be given by
N(t) (1 - N),N(o) = No
n
=
()()
(1
-
() )
Where () > 0 is the growth rate > the maximum susistainable population.
- 1 2 =
(1 - 1 ) =
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International Journal of Statistics and Applied Mathematics
()
(1
-
1
)
=
0
0
=
() 1
0
[
+
1
1
-1
]
1
=
[lg
-
lg
(1
-
)]
0
1
=
[lg
(1
-
)]
0
=
( 1
-
)
(1
- )
=
(1 - )
(1 - )
= (-)
(-)
(
-
)
=
(
- )
-
-
1
=
(
- )
-
=
1
+
(
-
1)
-
= 1 + ( - 1) -
() = 1 + ( - 1) -
lim
()
=
lim
1+(-1) -
=
= lim() =
0 2 3 4 5
() 0 2 3 4 5
-
=
0
(2 - ) ( - 0)
=
1
ln
2 0
( (2
- 0) - )
=
(0 - 202 + 2 - 02
2 )
=
2
2
2 = (1 - )
2 2
=
0,
for
=
2
and
implies
=
1
ln
(
0
-
1)
2 2
>
0for
<
2
2 2
<
0for
<
2
In other words () increases at increasing rate when () <
and it is morcase but at dicrasing rate when () > and
2
2
here in a part of inflection when () = . = 1 ln ( - 1)
2
0
Analysis The data [10] consider for the study based on the population (10) from 1991 to 2011 as shown in table [1].
Year 1991 2001 2011
Table 1: Population of India
Actual Population (Million) 846 6 1028 7 1210 8
Table 2: Logistic Model Parameters
0357808 2051 06 ? 106
()
0 2
2051 06 () = 1 + (1 423)(0 6982)
Using mathematical Logistic model, be population of India
was projected for 2021 and 2051. The projections are shown in table [3] followed by a graphical representation in figure 1.
Year
1991 2001 2011 2021 2031 2041 2051
Table 3: Estimated Population of India
Actual Population of India (Million) 846 6 1028 7 1210 8
Projected Population (million) 846 446 1027 445 1211 065 1381 836 1607 548 1659 299 1760 808
Fig 1: Estimated Population of India
Conclusion By mathematical analysis using Logistic Growth Model, I have tried to calculate the population of India since 2021-
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International Journal of Statistics and Applied Mathematics
2051. I have found that this model predicts a carrying capacity for the population of India to be 2051 06 ? 106 with growth rate approximately 3 57% per annum. Thus, this study provides a significant key role for prediction of the future population size of any country. Results obtained in mathematical analysis showed that the logistic equation can also be used to predict some business and economic system as well as describing the effects of measuring employees working in different public sectors as problems associated with the areas of concern.
References 1. Yushnit I, Masykur R, Suherman: Modifikasi Model
Pembelajarn Gerlach dan fly Melalui integrasi NilaiNilali kesilaman Sebagai Upaya Meningkatkan Kemampuan Representasi Mathmematics. 2016 Al-JabarJ Pendidik. Mat. 71 2. Sunday J, James A, Ibijola E. Ogunrinde R, Ogunyebi S. A Computational Approach to Verhult-Pearl Model, IOSR J. Maythematics, 2012, 43. 3. Mujib M, Mardiyah. Kemampuan Berpikir Kritis Matematis Berdasarkan Kecerdasan Multiple Intelligence Al-Jabar Pendik. Mat, 2017, 82. 4. Dawed MY, Koya PR, Goshu AT. Mathematical Modelling of Population Growth: The Case of Logistic and Von Bertalanffy Models, Sci. Res. An Acad. Publ, 2014, 24. 5. Andriani S. Uji Park Dan Uji Breusch Pagan Godfrey dalam Pendeteksian Heteroskedastastisitcs pada Analisis Regresi Al-Jabar J. Pendidik. Mat, 2017, 81. 6. Sunarish S, Hidayati FN. Model Pertumbuhan Logistik Predator dan PREY pada Populasi PREY dan Solusi Kesetimbangan J Sains Mat, 2010, 181. 7. Hillen T. Applications and Liminations of the Verhulst Model for Populations Math boil. 2003; 6:19-20. 8. Sumiyati W, Netriwati N, Rakhmawati. Penggunan Media Pembelajaran Geometri Berbasis Etnomatematika, Desimal J Mat, 2018, 11. 9. Yang Y, Yang S, Qian W, Li X. Forecosting New Product Diffusion Using Grey Time-Delayed Verhulst Model, J Appl. Mathp, 2013. http//data world bank org/indicator/HPOPOTOT
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