Maxima Definition and 162 Threads

  1. G

    Piecewise functions in Maxima or GNUplot

    I managed to lay my grubby mitts on Maxima about a month ago (fantastic program), but having no prior knowledge of CAS software or programming I am stuggling trying to figure out how to draw piecewise defined functions either through maxima itself or the GNUplot command line window (I prefer the...
  2. G

    Solve Shortest Distance Point (0,c) from Parabola y=x^2

    Hi I am stuck on this ques. although i have solved and got the ans but i am still facing a problem. Find the shortest distance of the point (0,c) from the parabola y=x^2 where 0<= c <= 5 i got the ans right that is (c-0.25)^0.5 but i have not been able to understand the use of the 0<= c <= 5...
  3. R

    Single slit diffraction maxima

    Hi, I was wondering if anyone could help me with this problem. Calculate the distance y between adjacent maxima in single slit diffraction patterns. Your answer should be given in terms of a, λ and D. (a is the length of the slit, D is the distance between the slit and the screen and λ is...
  4. O

    Maxima and Minima for a two variable function

    Greetings, can you guys please help me with my assignment?? I am supposed to find and classify all critical points of the function f(x,y) = (sin x)(cos y) Now I took the first partials with repsect to x and y and they are (cos x)(cos y) = 0 and (-sin x)(sin y) = 0, respectively. Now I...
  5. F

    Find Stationary Point on y= 16x³ + 4x² + 1/2x² | Maxima & Minima

    Find the coordinates of a stationary point on the curve y= \frac{16x^3 + 4x^2 + 1}{2x^2} And determine the nature of this points. How I find the coordinates? I know the second part.
  6. C

    How Do You Optimize Box Volume by Cutting Squares from a Sheet of Metal?

    Hello all You are planning to make an open box from a 30- by 42 inch piece of sheet metal by cutting congruent squares from the corners and folding up the sides. You want the box to have the largest possible volume. (a) What size square should you cut from each corner? (gice side length of...
  7. C

    How to find increasing and decreasing intervals of a biquadratic function?

    Hello all Given y = -x^4 + 18x^2 + 11 how would you find the intervals where the function is increasing and decreasing? Would you have to find f'(x) and find critical points? Thanks
  8. C

    Applied Maxima and Minima Problems

    Hello all I have a few questions on applied maxima and minima 1. A company gives you 675 sq. ft of cardboard to construct a rectangular carton with the largest volume. If the carton is to have a square base and an open top, what dimensions would you use? My Thought Process: Volume =...
  9. C

    Find the Local Maxima of f(x)=2x^3-3x^2-12x+3

    Find the local maxima: f(x)=2x^3 - 3x^2 -12x + 3
  10. H

    A confusing prob. on maxima and minima

    I have u(x,t)=-2xt-x^2 find maximum in region {-2 ≤ x ≤ 2 , 0 ≤ t ≤ 1} I believe to find the critical point first I have to take the partial derivative with respect to x and t and equate to zero. Thus Ux=-2t-2x = 0 Ut=-2x = 0 Thus the only critcal point I find is x=0, t=0. But the...
  11. S

    Calculus maxima and minima word question can't understand

    Calculus maxima and minima word question...can't understand :( A rectangular field is going to be enclosed and divided into two separate rectangular areas (not equal either). Find the minimum fencing required if the total area of the field is 1200m^2 (See the picture attached right now)...
  12. S

    Timelike geodesics might not be maxima of the proper time

    A commonly accepted modern SR/Gr statement is "timelike geodesics are maxima of the proper time". I really shall not dispute with these experts, who are all professors. But this statement is clearly questionable. It bothered me for a long time. The H & T experiment and GPS all show the...
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