x=sym('x')
x =
x
>> a=sym('alpha')
a =
alpha
>> syms a и
>> syms a и
>>
>> [x]=slove('2*x/(x-1)-7/2=(x+1)+5/(2-2*x)')
??? Undefined function or variable 'slove'.
>> [x]=solve('2*x/(x-1)-7/2=(x+1)+5/(2-2*x)')
x =
[ -7/2]
[ 2]
>> [x,y]=solve ('3*x+4*y=18'.'2*x+5*y=19')
??? [x,y]=solve ('3*x+4*y=18'.'2*x+5*y=19')
|
Error: ")" expected, "numeric value" found.
>> [x.y]=solve ('3*x+4*y=18'.'2*x+5*y=19')
??? [x.y]=solve ('3*x+4*y=18'.'2*x+5*y=19')
|
Error: ")" expected, "numeric value" found.
>> [x.y]=solve ('3*x+4*y=18'.'2*x+5*y=19')
??? [x.y]=solve ('3*x+4*y=18'.'2*x+5*y=19')
|
Error: ")" expected, "numeric value" found.
>> [x.y]=solve ('3*x+4*y=18','2*x+5*y=19')
??? Access to an object's fields is only permitted within its methods.
>> [x.y]=solve ('3*x+4*y=18'.'2*x+5*y=19')
??? [x.y]=solve ('3*x+4*y=18'.'2*x+5*y=19')
|
Error: ")" expected, "numeric value" found.
>> [x,y]=solve ('3*x+4*y=18','2*x+5*y=19')
x =
2
y =
3
>> syms x
>> p=(a-(4*a-9))/(a-2)/(2*a-2*a/(a-2))
p =
(-3*alpha+9)/(alpha-2)/(2*alpha-2*alpha/(alpha-2))
>> simplify(p)
ans =
-3/2/alpha
>> syms x k
>> s=symsum(1/k.^4,1,inf)
s =
1/90*pi^4
>> syms x k
>> s=symsum(1/k.^5,1,1, 10)
??? Error using ==> sym/maple
Error, (in sum) summation variable previously assigned, second argument evaluates to, 1 = 1 .. 10
Error in ==> C:\MATLAB6p5\toolbox\symbolic\@sym\symsum.m
On line 43 ==> r = maple('map','sum',f,[x.s '=' a.s '..' b.s]);
>> syms x k
>> s=symsum(1/k.^5,1,1,10)
??? Error using ==> sym/maple
Error, (in sum) summation variable previously assigned, second argument evaluates to, 1 = 1 .. 10
Error in ==> C:\MATLAB6p5\toolbox\symbolic\@sym\symsum.m
On line 43 ==> r = maple('map','sum',f,[x.s '=' a.s '..' b.s]);
>> syms x k
>> s=symsum(1/k.^4,1,1,10)
??? Error using ==> sym/maple
Error, (in sum) summation variable previously assigned, second argument evaluates to, 1 = 1 .. 10
Error in ==> C:\MATLAB6p5\toolbox\symbolic\@sym\symsum.m
On line 43 ==> r = maple('map','sum',f,[x.s '=' a.s '..' b.s]);
>> syms a x
>> y=sin(a*x)
y =
sin(a*x)
>> diff(y)
ans =
cos(a*x)*a
>> sum a y n
??? Error using ==> sum
Too many input arguments.
>> sums a y n
??? sums a y n
|
Error: Missing operator, comma, or semicolon.
>> sum a, y, n
ans =
97
y =
sin(a*x)
??? Undefined function or variable 'n'.
>> sum a, y, n.
??? sum a, y, n.
|
Error: "identifier" expected, "end of line" found.
>> sums a, y, n
??? sums a, y, n
|
Error: Missing operator, comma, or semicolon.
>> sums a y n
??? sums a y n
|
Error: Missing operator, comma, or semicolon.
>> sum a, y, n
ans =
97
y =
sin(a*x)
??? Undefined function or variable 'n'.
>> y=x.^n
??? Undefined function or variable 'n'.
>> sum a, y, n,
ans =
97
y =
sin(a*x)
??? Undefined function or variable 'n'.
>> sum a, y, n
ans =
97
y =
sin(a*x)
??? Undefined function or variable 'n'.
>> diff(y,x)
ans =
cos(a*x)*a
>> sum a y n
??? Error using ==> sum
Too many input arguments.
>> sums a y n
??? sums a y n
|
Error: Missing operator, comma, or semicolon.
>> sums a, y, n
??? sums a, y, n
|
Error: Missing operator, comma, or semicolon.
>> sums a y n
??? sums a y n
|
Error: Missing operator, comma, or semicolon.
>> syms a y n
>> y=x.^n
y =
x^n
>> diff(y,x\0
??? diff(y,x\0
|
Error: ")" expected, "end of line" found.
>> sums a y n
??? sums a y n
|
Error: Missing operator, comma, or semicolon.
>> y=x.^n
y =
x^n
>> syms a y n
>> y=x.^n
y =
x^n
>> diff(y,x)
ans =
x^n*n/x
>> syms x y n
>> y=x.^n
y =
x^n
>> fiff(y.x)
??? Access to an object's fields is only permitted within its methods.
>> syms x y n
>> y=x.^n
y =
x^n
>> diff(y.x)
??? Access to an object's fields is only permitted within its methods.
>> syms x y n
>> y=x.^n
y =
x^n
>> diff(y,x)
ans =
x^n*n/x
>> syms a и
>> syms a b c
>> int (1/a.^2+(b*x).^2)
ans =
1/a^2*x+1/3*b^2*x^3
>> syms a b c
>> int (1/a/^2-(b*x).^2,0,a/b)
??? int (1/a/^2-(b*x).^2,0,a/b)
|
Error: Expected a variable, function, or constant, found "^".
>> syms a b c
>> int (1/a/.^2+(b*x).^2)
??? int (1/a/.^2+(b*x).^2)
|
Error: Expected a variable, function, or constant, found ".^".
>> syms a b c
>> int (1/a.^2+(b*x).^2)
ans =
1/a^2*x+1/3*b^2*x^3
>> syms a b c
>> int (1/a.^2-(b*x).^2,0,a/b)
ans =
1/a/b-1/3/b*a^3