Error using round every time can anyone please help me with this?

8 次查看(过去 30 天)
c= 1;
n = 0.025;
bw = 36;
angle = 60;
syms x
tw = simplify(bw + 2*(x * tand(angle)));
A = 0.5*(bw + simplify(tw))*x;
P = simplify(bw + 4*x);
%%2* simplify(sqrt((x^2)+((x*tand(angle))^2)))
S = 0.00001;
Q = 347.9;
syms brand height
brand = ((c/n)*((A^1.666)/(P^0.666))*(S^0.5)) == Q
height = vpasolve(brand, x)
stage = round(height,4); %%%LINE 18%%
ITS SHOWING TOO MANY INPUT ARGUMENT WHY SO?
OUTPUT
Error using sym/round
Too many input arguments.
Error in Untitled2 (line 18)
stage = round(height,4)

采纳的回答

Star Strider
Star Strider 2021-4-20
Convert ‘height’ to double first:
stage = round(double(height),4) %%%LINE 18%%
.

更多回答(1 个)

Steven Lord
Steven Lord 2021-4-20
The round function for symbolic expressions does not accept the input argument N (the number of digits to which to round) like the round function for numeric arrays does. If you convert your height variable to double then you can call round to round the number to 4 places.

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