Recent content by Foilist

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    Linear Programming Problem - Help with Constraints Please

    SOLVED! Thank you Many thanks for that! After you pointed it out it was so blindingly obvious... doh! Anyway, I hav enow been able to use the simplex method to obtain figures that agree with the mathematically obtained ones, so happy days. Thanks for the help.
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    Linear Programming Problem - Help with Constraints Please

    I have been struggling with Part 3 of this question for some time: Computico Limited, currently operating in the UK, assembles electronic components at its two factories, located at Manchester and London, and sells these components to three major customers. Next month the customers, in units...
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    Linear programming - incorrect constraints

    Hi, I have been struggling with Part 3 of this question for some time: Computico Limited, currently operating in the UK, assembles electronic components at its two factories, located at Manchester and London, and sells these components to three major customers. Next month the customers, in...
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    Engineering Multiplexer Voting Circuit - 74LS151

    Think I've cracked it .. need confirmation! Think I have solved the problem, as now I can get the outputs required. However, grateful if someone could tell me if I have met the requirements of "W to be the MSB" in the question? Rumour amongst class is that the tutor has hinted that this means...
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    Engineering Multiplexer Voting Circuit - 74LS151

    Current Outputs 4 Share 3 Shares 2 Shares 1 Share BCD Output 0 0 0 0 0000 - to be an illegal code 0 0 0 1 0001 - correct 0 0 1...
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    Engineering Multiplexer Voting Circuit - 74LS151

    Thanks for the info. I'll draw up the table today. As far as blanking the display goes, it will be a special code - the 4511 driver blanks in the case on an illegal BCD code, so I have to figure out how to convert an all 0 input to a value between A - F.
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    Engineering Multiplexer Voting Circuit - 74LS151

    Homework Statement LOGIC DESIGN USING MSI COMPONENTS A small corporation has 10 shares of stock, and each share entitles its owner to one vote at a stockholder’s meeting. The 10 shares of stock are owned by four people as follows: Mr.W; 1 share, Mr. X; 2 shares, Mr. Y; 3 shares, Mrs...
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    Engineering Reversing Current in Part F: Seeking Help

    The attached document contains the question and the answers I have calculated. I am confident that I have answered them correctly however another pair of eyes is always useful. The problem I have is with part f - Rate of change of current at the instant the switch is closed on position 2...
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    Inductors with apparent negative inductive reactance?

    Many thanks for the help - didn't even register about the negative resistance!
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    Inductors with apparent negative inductive reactance?

    1. I am currently progressing through my assignment, however I have been given a circuit with 2 values of Z: Z1 has a magnitude of 30 and angle of -31. Z2 has a real value of -12 and an imaginary number of -36. 2. When these are both converted to complex number format: Z1 = 25.715 -...
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