- #1

salman213

- 302

- 1

**1. This is not a question from the book but i think if i can get the answer to this it will clear the idea i am confused about**

can i covert a cylindrical vector such as

P(1 ar, 1a[itex]\theta[/itex])

into cartesian

after using the matrix

i got

Px = cos [itex]\theta[/itex] - sin [itex]\theta[/itex]

Py = sin [itex]\theta[/itex] + cos [itex]\theta[/itex]Now these values of phi are dependent on a point right? So i cannot find numbers until the question asks for the conversion at a specific point...

for example

at point (1,2)

then cos [itex]\theta[/itex] = x/sqrt(x^2+y^2)

AM I RIGHT?OR DOES [itex]\theta[/itex] = 1 from

the vector P(1 ap, 1 a[itex]\theta[/itex])

can i covert a cylindrical vector such as

P(1 ar, 1a[itex]\theta[/itex])

into cartesian

after using the matrix

i got

Px = cos [itex]\theta[/itex] - sin [itex]\theta[/itex]

Py = sin [itex]\theta[/itex] + cos [itex]\theta[/itex]Now these values of phi are dependent on a point right? So i cannot find numbers until the question asks for the conversion at a specific point...

for example

at point (1,2)

then cos [itex]\theta[/itex] = x/sqrt(x^2+y^2)

AM I RIGHT?OR DOES [itex]\theta[/itex] = 1 from

the vector P(1 ap, 1 a[itex]\theta[/itex])

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