sym to double data type:
30 views (last 30 days)
Show older comments
Bamelari Jovani
on 14 Aug 2024 at 20:49
Answered: Walter Roberson
on 14 Aug 2024 at 22:33
I want to obtain the y_values in double but they are in symbolic form. Anyway I can get around this? Thank you!
L_e = 0.7199;
Y_poly = @(x) a4*x.^4 + a3*x.^3 + a2*x.^2 + a1*x + a0;
x_values = linspace(0, L_e, 100); % 100 points from 0 to L_e
y_values = Y_poly(x_values);
The values for the coefficients are:
a4 = -0.324785
a3 = 0.472768
a2 = -0.011102
a1 = 0.000000
a0 = 1.000000
2 Comments
Paul
on 14 Aug 2024 at 20:55
y_values are alread double based on the posted code.
a4 = -0.324785;
a3 = 0.472768;
a2 = -0.011102;
a1 = 0.000000;
a0 = 1.000000;
L_e = 0.7199;
Y_poly = @(x) a4*x.^4 + a3*x.^3 + a2*x.^2 + a1*x + a0;
x_values = linspace(0, L_e, 100); % 100 points from 0 to L_e
y_values = Y_poly(x_values);
y_values(1:5)
class(y_values)
Torsten
on 14 Aug 2024 at 20:58
There is nothing symbolic in what you posted.
a4 = -0.324785;
a3 = 0.472768;
a2 = -0.011102;
a1 = 0.000000;
a0 = 1.000000;
L_e = 0.7199;
Y_poly = @(x) a4*x.^4 + a3*x.^3 + a2*x.^2 + a1*x + a0;
x_values = linspace(0, L_e, 100); % 100 points from 0 to L_e
y_values = Y_poly(x_values);
plot(x_values,y_values)
grid on
Accepted Answer
Walter Roberson
on 14 Aug 2024 at 22:33
Your coeffiecients are symbolic. You should use
syms x
Y_poly = matlabFunction(a4*x.^4 + a3*x.^3 + a2*x.^2 + a1*x + a0);
0 Comments
More Answers (0)
See Also
Categories
Find more on Data Distribution Plots in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!