Wolfram alpha Definition and 25 Threads

Initially, I was attempting to find the function which expresses the area under enclosed between the function ##\arcsin(\sin(x))## and the ##x##-axis (so technically I am looking for ##\int_{0}^{x} \arcsin(\sin(t)) dt## specifically, but got caught up on finding the general antiderivative)...

When I put the following integral into the free version of Wolfram I get a sensible answer: $$\int \frac{1}{(1 - \frac 1 u)\sqrt{\frac 1 u - a}}du$$The function includes an inverse ##\tanh## function that (as expected) diverges as ##u \to 1##. But, if I try: $$\int \frac{1}{(1 - \frac 1...

I should probably get one or two of these under my belt. My current need is to plot a ... I guess it's a heat map. I've got a map of my local area and I want to determine the geographical centre of a number of points (say, seven). So, for every xy "cell" on the map, I'll use pythagoras to...

Hi I need to solve this equation: $$ a = x \cdot \left( c \cdot e^{ \frac {1} {d+x \cdot e }} - b \right) $$ for x. Unfortunately Wolfram Alpha refused to compute it. Maybe I need a Pro version. Can anyone help me? Thanks!

just something I need quickly to illustrate a homework help, don't want to spend much time on. What is the code in WolframAlpha just to plot an ornery family of curves? Searched WA and find all sorts of fancy things, not this ornery one. Should. be something like e,g. For n= 1 to 20 c= n*0.05...

\sqrt{\sqrt{}}Firstly, I have tried to work out the square root sign, I would have thought this common sign to be listed on the right. While checking my answer to the square root of 171 I noticed wolfram displayed also another function under the listing of "exact answer". It gave 3 with a...

My Introduction -Berklee Grad -Machinist -Father of two -HUGE horology nerd In joining this website I hope to gain some deeper understanding of the mathematics and predicted behaviors of a Spherical Pendulum. I stumbled across a physics paper, several actually on the subject that peaked...

Hello- I was checking an answer to an integral on Wolfram Alpha and noticed I don't know how they distinguish between ln(x) and ln("absolute value of"(x)). It appears all of their inputs and outputs imply absolute value (taking positive and negative x-values) Is anyone here familiar with their...

Hi, i would like to get someone's opinion on an iOS app I've been looking into. I already own Wolfram Alpha and am curious as I'm taking Calculus II should i get the Calculus Course assistant from Wolfram and what is the difference between it and the regular Alpha?

Hi, I'm reading a book of math and in one page says: $$\sum_{n=2}^{\infty }\frac{3^n-1}{4^n}\zeta (n+1)=\pi$$ I tried to solve this,as I could not solved I requested to wolfram alpha and told me that this sum is approximately equal to 2.319125...

Dear PF Forum, Do anybody know the 'Wolfram Alpha' for chemistry? For example. If I enter: HCl + NaOH The website will produce something like HCl + NaOH -> NaCl + H2O (+ or - energy would be preferable) or if I enter: C6H12O6 + O2 The website will produce something like: Do you mean: C6H12O6 +...

Is it worth it for a beginner to get a wolfram alpha pro acct? I'm interested in learning math and I find the free tools great. I'm curious as to how people that know how to do math think of wolfram. Do you think having the extended features would be too much for someone at a gr 12 u level...

I am wondering how one would go about drawing graphs in Argand plane using Wolfram Alpha. For instance, I want to plot an ellipse $|z-1|+|z+1|=5$ using W|A, what should be the input? Simply entering $|z-1|+|z+1|=5$ doesn't give what I want. Thanks!

So yeah, Just using wolfram to help draw a nice function, when this happens: http://www.wolframalpha.com/input/?i=x%5E2%2Fln(x) It shows a real part under zero, when the function given, x^2/ln(x) has no real solution under zero ! It's domain being: Dm(f) = ]0;1[U]1;infinity[ need...

I think a lot a users have vague concepts about the roots of unity. I try to post a link to WolframAlpha, which calculates all the second roots of unity http://www.wolframalpha.com/input/?i=sqrt%281%29 There you can see the input \sqrt{1} and the plot of all roots in the complex plane...

Hi All, I am looking into engineering and physics grad schools. I have a good deal of information available, and am trying to sort through it. Has anyone used Wolfram Alpha to do anythings like this? From basic comparisons like "Harvard University, Princeton University" it will give you a...

The so called 'Moebious Function' is a discrete function defined as... $$\mu(n)= \begin{cases} - 1 &\text{if n has an odd number of prime distinct fators} \\ 0 &\text{if n has one or more prime fractors with exponent greater than one}\\ 1 &\text{if n has an even number of prime distinct...

I'm noticing wolfram alpha has the amazing ability to analytically solve \sum_{n=1}^{\infty} \frac{1}{n^2 + a^2} Anyone know how to do this, and if it's also possible to deal with higher order guys (like it also can do 1/(n4+a2), but it's a way more complicated expression to the point...

Homework Statement Ok well I had a real nasty equation in which i could not solve. I used wolfram alpha to get out this answer "theta ≈ 0.74559 + 6.28319n for integer n". can someone please tell me what this statement means. do i assume theta in degrees equals 0.74559(180/pi)...

http://blog.wolframalpha.com/2013/04/01/introducing-the-wolframalpha-handwritten-knowledge-engine/ Hmm. Could this be an April Fools Day exercise?

Can someone please tell me how I can plot the magnitude and phase response of this transfer function on wolfram alpha as I don't have Matlab: H(s) = -(2.1953*10^12)/(66600*((j*ω)^2)+808823539.4*(j*ω)+2.1626*10^12) A link to the output would be very useful also, thanks heaps.

Do you guys think it is worth paying the extra money and upgrading to Wolfram Alpha pro?

Homework Statement ∫10x-2x2/((x-1)2(x+3)) Solve by partial fractions. The Attempt at a Solution ∫A/(x-1) +B/(x-1)2 + C(x+3) after setting up the partial fractions and multiplying each term by LCD: 10x-2x2= A(x-1)(x+3) + B(x+3) + C(x-1)2 10x-2x2= A(x2+2x-3) +Bx+3B +Cx-C 10x-2x2=...

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Wolfram Alpha - oh...my... Am I the last person on this planet to find out about this website ? It's freaking amazing ! check it out if you've never heard about it. http://www.wolframalpha.com