Solve function

Hi Everyone,

I need to find the value of xgaris1

   dis1=1.5;
   newx=3;
   newy=2; 
   xgaris1= solve('dis1^2=abs(sqrt(xgaris1-newx)^2+((3-xgaris1)-newy)^2)');

but the output of xgaris1 always didn't calculate the numeric value of dis1, newx, and newy as seen below: xgaris1 = (4*dis1^2 + 4*newx + 4*newy - 11)^(1/2)/2 - newy + 5/2 5/2 - (4*dis1^2 + 4*newx + 4*newy - 11)^(1/2)/2 - newy

For any reply, will very appreciate.

Thanks in advance, Lina

Answer 1

[Walter Roberson]

Convert solve('A=B') to solve((A)-(B)) with no quotes. But

syms xgaris1

first.

[lina]

Hi Walter,

thanks for the reply..

I've tried as your suggestion, but have some errors below :

>> clear

dis1=1.5;

newx=3;

newy=2; syms xgaris1;

solve((dis1^2)=(abs(sqrt(xgaris1-newx)^2+((3-xgaris1)-newy)^2)))

solve((dis1^2)=(abs(sqrt(xgaris1-newx)^2+((3-xgaris1)-newy)^2)))

|

Error: The expression to the left of the equals sign is not a valid

target for an assignment.

>> clear

dis1=1.5;

newx=3;

newy=2; syms xgaris1;

xgaris1=solve((dis1^2)=(abs(sqrt(xgaris1-newx)^2+((3-xgaris1)-newy)^2)))

xgaris1=solve((dis1^2)=(abs(sqrt(xgaris1-newx)^2+((3-xgaris1)-newy)^2)))

|

Error: The expression to the left of the equals sign is not a valid

target for an assignment.

[Walter Roberson]

(A) MINUS (B)