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Mathematics Stack Exchange

Questions tagged [mathcad]

Mathcad is software for symbolic computation, numeric computation, and typesetting of texts involving mathematical notation.

9 questions
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How is MathCad finding an impossible result ?!

I have a matrix Q with 1,480 rows and 740 columns. I have a vector op3 with 740 rows and 1 column. As expected, Q.op3 gives a resulting vector of 1480 elements. However, MathCad, which is normally very picky about having compatible dimensions, is…
Anne Boleyn
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How to show result in terms of $\pi$ in Mathcad?

Is it possible to display a result in Mathcad as a function of $\pi$? I'm studying physics and I need to show exact results at the exams. I know I can set Mathcad to give me the result in decimals or in fractions, but none of them are good…
Nillo
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How to fix discontinuities in the $\arctan$?

I am working in Mathcad with the arctangent function of the following form: $\Theta_1(t)=2\arctan(\frac{y_1(t)}{x_1(t)})$ $\Theta_2(t)=2\arctan(\frac{y_2(t)}{x_2(t)})$ where $x_1(t),y_1(t),x_2(t),y_2(t)$ - time-dependent numerators and…
ayr
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How can we plot solid of revolution in Mathcad Prime?

I finded the answer for the exercise but I don't know how plot a 3D for the volume of answer. Click for image exercise
Robby
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Fitting and Ellipse to a set of data points in Mathcad.

I would like to fit an ellipse to a set of data points in Mathcad and afterwards plot it. Searching the net, I stumbled on to Mike Shaw's post, which answers 75% of my question: See Plotting an Ellipse after an Ellipse Fit Could someone enlighten me…
Simon
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Can Mathcad solve circular function definitions?

How do I get MathCAD to solve sets of differential equations with circular equation definitions? By expanding the equations to the below, I managed to get Mathcad to solve it. But I'd really like to be able to have MathCAD solve the original set…
Arely Torres
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How to find the arc centre and radius given the arc start point and arc end point and arc direction?

I know the arc start point and the end point. It is separated by a height/distance as shown in the figure.The blue line end points are the arc start and end points respectively. How can i drawn a arc given that I dont know either its centre nor…
noob
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How do I put this differential equation into mathcad 11

$$\frac{d^2y}{dt^2}+\frac{dy}{dt}+2y(t)=sin(t)+2e^{-2t}-2$$ I want to put this into mathcad, and then solve it numerically. I would also like to plot the solution. Sorry for the link, wasn't sure how else to put it nicely on here.
Jerome
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Mathcad using Odesolve function $y'+2xy=x\cdot e^{-x^2}$

I just can't use the Odesolve function for this equation: $$y'+2xy=x\cdot e^{-x^2}$$ If anyone could help....
Paul J.
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