Stefano Milani

The value are already real number infact: (%i14) demoivre(answer); (%o14) [v_y=23.7(%isin(1.0%pi)+cos(1.0%pi)),v_y=23.7(%isin(2.0%pi)+cos(2.0%pi))] Where sin(…) is zero for each case. To obtain an easier solution try with: float(trigrat(answer)); [v_y=-23.7,v_y=23.7] Best regards Stefano Da: Ace Pattuinan Inviato: giovedì 1 giugno 2017 10:54 A: [wxmaxima:discussion] Oggetto: [wxmaxima:discussion] How to force Maxima to use real numbers Hello! I tried to solve a problem from University Physics 14th...

The value are already real number infact: (%i14) demoivre(answer); (%o14) [v_y=23.7(%isin(1.0%pi)+cos(1.0%pi)),v_y=23.7(%isin(2.0%pi)+cos(2.0%pi))] Where sin(…) is zero for each case. To obtain an easier solution try with: float(trigrat(answer)); [v_y=-23.7,v_y=23.7] Best regards Stefano

try to expand(eq5) to obtain the same (formal) results

I cannot try now, but I usually used trigrat Il 14 Mag 2017 03:53, "Adam Szewczyk" matballs@users.sf.net ha scritto: Hi Everyone, Any one with Maxima experience, why in the following code Maxima does not simplify the algebra in the matrix (ex: w-Er can be cancel out) (%i51) I: matrix( [1,0], [0,1]);(%o51) matrix([1,0],[0,1])(%i12) Δ:0;(%o12) 0(%i16) ▲:0;(%o16) 0(%i17) Δc:conjugate(Δ);(%o17) 0(%i52) G: matrix( [(Er-Eo)^-1,0], [0,(Er-Eo)^-1] );(%o52) matrix([1/Er-Eo,0],[0,1/Er-Eo])(%i53) ∑: (2Γ)matrix(...

Two question: 1) i term is the imaginary unit? in this case you must write %i instead i 2) int the integrate term the multiplication symbol beetween G2 and (F1-F2) is not present

can you explain how you set in paper the calculation? In the text you referred to explicit function but the following function is implicit. However the first you can use this command to diff the espression diff(z^3-3x^2y+6xy*z) In the output you obtain del(x,y,z) that are the partial derivatives terms. Regards S

I think that you can find more support I maxima forum instead in wxmaxima forum Il 30 Apr 2017 13:23, "Stefano Milani" stefano22901@users.sf.net ha scritto: You're welcome ;-) Il 30 Apr 2017 12:55, "david" dbanon2@users.sf.net ha scritto: Thank you very much, I think I will try to plot the parametric function. Plotting exp(y) and x*y https://sourceforge.net/p/wxmaxima/discussion/435775/ thread/f16024c9/?limit=25#3590 Sent from sourceforge.net because you indicated interest in https://sourceforge.net/p/wxmaxima/discussion/435775/...

You're welcome ;-) Il 30 Apr 2017 12:55, "david" dbanon2@users.sf.net ha scritto: Thank you very much, I think I will try to plot the parametric function. Plotting exp(y) and x*y https://sourceforge.net/p/wxmaxima/discussion/435775/thread/f16024c9/?limit=25#3590 Sent from sourceforge.net because you indicated interest in https://sourceforge.net/p/wxmaxima/discussion/435775/ To unsubscribe from further messages, please visit https://sourceforge.net/auth/subscriptions/