How i can write this in matlab??? x=-1.75*10^-3; y=3.1*pi;

[Star Strider]

Are you absolutely certain that is ? If not, what is it?

All the other trigonometric functions are spelled out specifically.

[Serafim Galinschii]

i am absolutely certain

Answer 1

[Asad (Mehrzad) Khoddam]

R1 = abs(x).*(x+tan(y))./(50*x.^2+abs(sin(y))).^(1/3)+(5*x.^2+abs(sin(y))).^2.2./(x.^2 .* (x+tan(y)).^4);
R2 = sinh(sqrt(2*x+(sin(y).^2))./((x+log(abs(tan(y)))).^(1/3)+abs(x)))-(x+log(tan(y))+cos(y))./(2x+(sin(y).^2)).^(1/3);

[Serafim Galinschii]

you can help me write this in optimized form using variables???

[Steven Lord]

What do you mean by "optimized form"? Please be specific about what you're trying to do.

[Serafim Galinschii]

>> a=x*(1+x)^2*(1+2*x)^3;
>> b=log(abs(cot(y)));
>> A=(a+(a/b)^(1/3))^(1/5)
this are optimized form usig variables another example and i need in this form R1,R2

[Asad (Mehrzad) Khoddam]

sy = sin(y);
xt = x + tan(y);
xtn = x + log(abs(tan(y)));
tx = 2*x+sy.^2;
R1 = abs(x).*xt./(50*x.^2+abs(sy)).^(1/3)+(5*x.^2+abs(sy)).^2.2./(x.^2 .* xt.^4);
R2 = sinh(sqrt(tx)./xtn.^(1/3)+abs(x)))-(xtn+cos(y))./tx.^(1/3);

[Serafim Galinschii]

Thank you