Ignoring a set of values
3 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
Ethan Boyce
am 26 Aug. 2020
Kommentiert: Ethan Boyce
am 26 Aug. 2020
I need to ignore the second values returned for my subsequent functions. In other words, for the values of t_max, I need to keep 10.27 and ignore 129.72
close all
clear all
syms t b r;
%Profit equation
P = (200+b*t)*(0.65-0.01*r*t+0.00004*t^2)-0.45*t;
%Best time to sell
dPdt = simplify(vpa(diff(P, t)))
sym_t_max =simplify(vpa(solve(diff(P, t), t)))
t_max = simplify(subs(sym_t_max, {b, r}, {5,1}))
P_max = simplify(subs(P, {t,b,r}, {t_max, 5,1}))
0 Kommentare
Akzeptierte Antwort
esat gulhan
am 26 Aug. 2020
Try this
close all
clear all
syms t b r;
%Profit equation
P = (200+b*t)*(0.65-0.01*r*t+0.00004*t^2)-0.45*t;
%Best time to sell
dPdt = simplify(vpa(diff(P, t)));
sym_t_max =simplify(vpa(solve(diff(P, t), t)));
t_max = simplify(subs(sym_t_max, {b, r}, {5,1}));
P_max = simplify(subs(P, {t,b,r}, {t_max, 5,1}));
t_max(1)
P_max(1)
Weitere Antworten (0)
Siehe auch
Kategorien
Mehr zu Loops and Conditional Statements finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!