# User Portlet

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Discussions |
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&[Wolfram Notebook][1] [1]: https://www.wolframcloud.com/obj/123730a4-a9ed-4f4f-8a4b-83f52837fe16 |

I am trying to plot a function that has the form T=f(r,t,s(t)) in the domain (0,0.05). If I input the numerical values of t and s(t), and then plot T as a function of r, Mathematica gives me the graph of T as a function of r. Plot[T, {r, 0,... |

I need to create a block that generates a boolean constant for a given time on detecting an instantaneous boolean pulse. I have no idea where to start. Pease help. Thanks. |

Hi! I need help regarding modifying the NOR block. I have been trying to achieve a NOR block such that when I input all 0's in it, it gives me a 1 for 5 seconds, and then reverts back to 0. Here's how I have modified the NOR block so far: ... |

I want to use the output of Dynamic[x] in a further computation. Here's a simple version of what I am trying to accomplish: Input: a = Dynamic[5] Output: 5 Input: a + 3 Output: 8 Here's whats I actually get: Input: a = Dynamic[5] ... |

I am trying to build a magnetic tachometer using SystemModeler and Arduino. I am using the basic sensor example of ModelPlug with the potentiometer replaced by a Hall Effect sensor. So far, I have been able to generate interrupts (pluses)... |

I am trying to run the tutorial Getting Started (http://reference.wolfram.com/system-modeler/libraries/ModelPlug/ModelPlug.GettingStarted.html) using my Arduino Mega 2560. I noticed that my simulation log did not match the one shown in the tutorial. ... |

If you buy Mathematica, do you still have to pay $5 per month - as you do for wolfram-alpha - in order to access more than three step-by-step solutions per day? |