Trigonometry is a branch of mathematics that studies the relationship between the side lengths and angles of triangles.

Trigonometry (sometimes called trig) uses 3 basic formulas regarding the relationships between sides and angles of right triangles.



While it can seem complicated, trig can be used in Scratch projects to create really cool things like this and this.

Pretty cool huh? Well, using the

blocks, you can create some pretty cool stuff!

Play around with them! What sort of trig stuff can we come up with?



Information sourced from Wikipedia
Thanks to Firedrake969 and bubble103 for their projects

well i already know you can make things go up and down smoothly using it

PoIygon wrote:

well i already know you can make things go up and down smoothly using it

w a v y

Good idea

RAMANRANJAN2282 wrote:

Good idea

Ok.

bump

Don't forget the atan function! It is really useful if you want to make a sprite point towards a specific spot without making it point at another sprite.

point towards ((x position) - (mouse x)) ((y position) - (mouse y)) // Note, might be backwards

define point towards (dx) (dy)
point in direction ([atan v] of ((dy) / (dx)))
if <(dy) < [0]> then
turn cw (180) degrees
end

mMmM yummy trig
I have made tons of junk trig projects, filled wave, circle, filled circle and even used trig for collabs (for smooth movement )

wangat wrote:

PoIygon wrote:

well i already know you can make things go up and down smoothly using it

w a v y

mmm s m o o t h and m o i s t

bump

the most classic thing:

set [temp v] to [0]
forever
change y by ([cos v] of (temp)::operators)
change [temp v] by (6.3)
end

han614698 wrote:

the most classic thing:

set [temp v] to [0]
forever
change y by ([cos v] of (temp)::operators)
change [temp v] by (6.3)
end

Yep, but a majority of users use sin.

Vaibhs11 wrote:

han614698 wrote:

the most classic thing:

set [temp v] to [0]
forever
change y by ([cos v] of (temp)::operators)
change [temp v] by (6.3)
end

Yep, but a majority of users use sin.

I prefer cos.

han614698 wrote:

Vaibhs11 wrote:

han614698 wrote:

the most classic thing:

set [temp v] to [0]
forever
change y by ([cos v] of (temp)::operators)
change [temp v] by (6.3)
end

Yep, but a majority of users use sin.

I prefer cos.

I use whichever works. Depends on what you want to do when the input angle is 0. Sin is good if you want the start point to be 0 too.

awesome-llama wrote:

han614698 wrote:

Vaibhs11 wrote:

han614698 wrote:

the most classic thing:

set [temp v] to [0]
forever
change y by ([cos v] of (temp)::operators)
change [temp v] by (6.3)
end

Yep, but a majority of users use sin.

I prefer cos.

I use whichever works. Depends on what you want to do when the input angle is 0. Sin is good if you want the start point to be 0 too.

Cosine is useful if you want it to be shifted 90° for some reason

imfh wrote:

Don't forget the atan function! It is really useful if you want to make a sprite point towards a specific spot without making it point at another sprite.

point towards ((x position) - (mouse x)) ((y position) - (mouse y)) // Note, might be backwards

define point towards (dx) (dy)
point in direction ([atan v] of ((dx) / (dy)))
if <(dy) < [0]> then
turn cw (180) degrees
end

Isn't it dy/dx?

It sometimes throws me off that JavaScript's Math.atan2, which handles adding 180° if necessary, takes y then x, but I guess it makes sense because of this

Sheep_maker wrote:

imfh wrote:

Don't forget the atan function! It is really useful if you want to make a sprite point towards a specific spot without making it point at another sprite.

point towards ((x position) - (mouse x)) ((y position) - (mouse y)) // Note, might be backwards

define point towards (dx) (dy)
point in direction ([atan v] of ((dx) / (dy)))
if <(dy) < [0]> then
turn cw (180) degrees
end

Isn't it dy/dx?

It sometimes throws me off that JavaScript's Math.atan2, which handles adding 180° if necessary, takes y then x, but I guess it makes sense because of this

Whoops, yep, you’re right.

ttt

Circular movement is cool

gosoccerboy5 wrote:

Circular movement is cool

Funny triangle and vertex going around a circle and getting its x pos as sin and and y pos as cos
Trigonometry itself is cool