Ed

]]>x^4 – x^2 = 0

x^2(x^2 – 1) = 0

Is that programmable for generic equations? I’m no expert on that.

]]>It would be really nice if visitors can help improve the program as requested.

]]>On the other hand solutions can be missed so x^4-x=0 gives 0 and 0 as the two solutions, though I expect thatâ€™s just a bug.

The program uses Lobachevsky’s method for finding roots of the equations more than the third degree. It allows to find only the real roots (complex roots are too difficult for programming), with the big lapse. I would be glad, if Steve or blog visitors have advised me a nice method for finding roots (both real and complex) for the equations of the high degrees, which can be easily programmed.

Having solved an equation itâ€™s not possible to change it – you have to enter a new one

For this purpose you can use button “History”.

]]>I’m quite embarrased that my mental arithmetic is pretty poor due to the fact that in my ‘younger’ years I used to use the calculator all the time. (It’s take me more than a second to work out simple fractions in my head!) 😮

I admit that I instinctively go towards my graphical calculator to draw graphs, however since we’re not allowed using them in the exams I’ve been more controlled.

Oh and I don’t think LaTeX is a maths ‘software’ as such, since it’s a bit like word (don’t shoot me) in the sense that you have to input what you’ve worked out. It doesn’t do it for you.

Sorry for the long comment but colleges nowadays seem to think that it’s important to use technology in class. I mean after we had filled some feedback forms in, my chemistry and further maths teachers started using computers! :/ It was something to do with enhancing learning.

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