function not working

Avərəs shared this problem 2 months ago
Not a Problem

The function f(x) works

f(x) = x + 2

a = f(6) = 8


and this equation here works

{{cos(pi/2),0,sin(pi/2)},{0,1,0},{-sin(pi/2),0,cos(pi/2)}} * Vector(3,4,2) = Vector(2,4,-3)


But this function doesn't work

R(x) = {{cos(x),0,sin(x)},{0,1,0},{-sin(x),0,cos(x)}}

v = R(pi/2) * Vector(3,4,2) = Vector(?,?,?)


can someone tell me why it wont work or how to fix it?https://www.geogebra.org/cl...

Comments (1)

photo
1

yep,

I have a workaround in CAS

https://www.geogebra.org/m/BpqJ28eP

see Matrixfunktion...

in cas use definition :=

packed in take(matrix,firstrow,lastrow)

and closed with keep input

no other way...

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