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    • by baba

      all reviews
      My husband is a businessman and he always keeps the calculator with him as it is must and should for him. He is using the calculator called Bistec calculator, which hi has been

      using since 6 years without any complaints about it. It is also the solar calculator, which can also be used if it is kept in the sun for � an hour. And ...

      • we can also charge it using some batteries. My children are very naughty and while playing so many times my children have used this calculator and they have also thrown it many a
        times, even though this calculator working very good and still it is in very good condition. The Bistec is a very good and standard company that has been producing much kind of Calculators.

    M.K.BARHA says :

    Keypad of my BISTEC Scientific calculator Model B-600 are erased.Keypad can be replaced ? Kindly inform your service center at GWALIOR M.P. INDIA
    Galega says :

    There isn’t any authorized service center of Bistec in India. In fact, there is only one service center in India. If you visit New Delhi, go to Mathura Road where you will find a service center of Bistec. I would rather suggest you to get it corrected in your own city, Gwalior, from a repairman.
    JAYESH DAWDA says :

    Jules Li says :

    Jayesh, Bistech is based in India. They only have a contact number for India. Here it is: (22) 24158141 24111002
    Galega says :

    Bistec doesn’t give any replacement guarantee. Your calculators will not be replaced. There is six months warranty for which you should submit the equipment at the store where you had bought it. Actually, it is quite tough to get it repaired because of the lack of service center in India.
    Raja kumar says :

    I have Bistac BS850 Calculator my uncle gifted me now I m interested to know about it help me please. I want to know about Price and date of manufacture and all.
    Galega says :

    Currently, the price of Bistac BS850 Calculator is Rs. 425. You can get some discount from Amazon India website. As for manufacturing date, you need to check the box. The date is clearly mentioned there.
    gaurav agrawal says :

    i m an engineering student and currenly using the bistec calculator. model no. BS-6300G it is a graphical scientific calculator. i am interested in calculating the variance of a given sample but couldnt do it. it is giving some math error, might be the because of the wrong algorithm. i request you to suggest the way how can i calculate the variance in this calculator. i will really appreciate………………………..
    Galega says :

    To calculate variance of a give sample, you need to use STAT mode. That may the mistake you are making. Press Mode (top right corner) then press 2 for STAT mode then press 1 corresponding to the 1-Var option.
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    The review was published as it's written by reviewer in July, 2007. The reviewer certified that no compensation was received from the reviewed item producer, trademark owner or any other institution, related with the item reviewed. The site is not responsible for the mistakes made. 122407191451131/k2311a0724/7.24.07
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