http://www.mapleprimes.com/questions/137681-Linear-Population-Models en-us 2026 Maplesoft, A Division of Waterloo Maple Inc. Maplesoft Document System Sat, 13 Jun 2026 18:50:09 GMT Sat, 13 Jun 2026 18:50:09 GMT The latest answers and comments added to the Question, Linear Population Models http://www.mapleprimes.com/images/mapleprimeswhite.jpg http://www.mapleprimes.com/questions/137681-Linear-Population-Models http://www.mapleprimes.com/questions/137681-Linear-Population-Models?ref=Feed:MaplePrimes:Linear Population Models:Comments#answer137682 <p>Assuming that the image part of your code is</p> <p>N:=t-&gt;( (1/N0-1)*exp(-2*r*t)+1)^(-1/2);</p> <p>then N0 =1 would give you the constant function 1. Also try other values of N0.</p> <p>Assuming that the image part of your code is</p> <p>N:=t-&gt;( (1/N0-1)*exp(-2*r*t)+1)^(-1/2);</p> <p>then N0 =1 would give you the constant function 1. Also try other values of N0.</p> 137682 Tue, 25 Sep 2012 14:45:57 Z Preben Alsholm Preben Alsholm http://www.mapleprimes.com/questions/137681-Linear-Population-Models?ref=Feed:MaplePrimes:Linear Population Models:Comments#comment137687 <p>If I type in any other value of N0 apart from 1 the plot does not work at all. :/. I know there is definitely something wrong with my coding just not sure what. The graph shown has just a horizontal line at1.0. This isn't very accurate for a population growth?</p> <p>If I type in any other value of N0 apart from 1 the plot does not work at all. :/. I know there is definitely something wrong with my coding just not sure what. The graph shown has just a horizontal line at1.0. This isn't very accurate for a population growth?</p> 137687 Tue, 25 Sep 2012 18:10:06 Z Chrissieh18 Chrissieh18 http://www.mapleprimes.com/questions/137681-Linear-Population-Models?ref=Feed:MaplePrimes:Linear Population Models:Comments#comment137688 <p><a href="http://www.mapleprimes.com/questions/137681-Linear-Population-Models#comment137687">@Chrissieh18</a> You could upload a worksheet.</p> <p>Actually I strongly suspect that you are missing a multiplication sign between r and t in the exponential function. That is also the reason for the way I formulated my answer.</p> <p><a href="http://www.mapleprimes.com/questions/137681-Linear-Population-Models#comment137687">@Chrissieh18</a> You could upload a worksheet.</p> <p>Actually I strongly suspect that you are missing a multiplication sign between r and t in the exponential function. That is also the reason for the way I formulated my answer.</p> 137688 Tue, 25 Sep 2012 18:41:19 Z Preben Alsholm Preben Alsholm