# User Portlet

Discussions |
---|

Hi I have a function "**fx**", whose maximum is sought in attached file. There is a parameter "**delta**", which significantly affects the maxima of function "**fx**". The values of "delta" ranges from -1.5 to 1.5. It is observed that, when the... |

Hi All, I am using the following command, to find **maximum** of a function: FindMaximum[Cos[phi Degree] (1 - 0.4 Sin[5 Degree + phi Degree]^2), phi] And getting the following **Out put**: {0.998309, {phi -> -2.22083}} I know... |

I was trying to draw a figure using "Drawing Tools". But I have struck at a point, and being not able to find the solution. I wish to draw an arc between two rays, but I am not being able to do so.. I have attached my code,here with it. ... |

I am using the command to plot 3D graph... Plot3D[f[x, y], {x, .1, .4}, {y, .1, .9}, LabelStyle -> {FontFamily -> "Arial Baltic", 10, GrayLevel[0]}, AxesLabel -> {"Phase Velocity (m/s)", "Saturation (S0)", "Frequency in... |

Here I have two Lists. Named as "root1" and "Att". I have plotted 3 D plots for them Using "ListPlot3D" command. The surfaces generated are not smooth. Is there any algorithm which can make these surfaces smooths ?? Hereby, I am attaching a... |

I have plotted few 3D graphs using the command "ListPlot3D" (Say Graph1) And then I am Expoting them using command : Export["G1.eps", Graph1] This exports the 3D graph "Graph1" to file "G1.eps" Now The problem arises is that, the size of... |

I have a small problem. sk = List[](*Here an empty list 'sk' is generated*) PTT = x^900 + 4 x^100 - 5(*Here I have defined a polynomial "PTT" in x having degree 900*) sk = x /. NSolve[PTT == 0, x]; ... |

Find the problem in Attached file. Thanks in Advance |

I have the following equation with 15 terms. It has basically 6 variables, namely a, b, c, d, e, f. I wish to remove the square roots from this equation by successively squaring and manipulation. Can Mathematica help in it? R1 Sqrt[a]... |

I have a following small prrograme, Atteched here with it. In this Proggrame two lists named as "List1" and "List2" are genrated. After that, I have tried to Plot the graphs of List1 and List2 on a same plot with two different verticle axis. During... |