How to use sin and cos

kinglert

Help please

RethinkingVoxels

Here's a wikipedia page that might help you.

kinglert

RethinkingVoxels wrote:
Here's a wikipedia page that might help you.

thx

kinglert

RethinkingVoxels wrote:
Here's a wikipedia page that might help you.

Wait I don't think I'm ready to know that stuff

Homeless_Mario68

sin and cos (sine and cosine) are trigonometry functions, most people probably wont need them for simple projects but they can be useful if you know what they do, they take in angle degrees as their parameter

here is an example of what you can do with them

set [angle v] to [0]
repeat (360)
go to x: (([sin v] of (angle)) * [50]) y: (([cos v] of (angle)) * [50])
change [angle v] by (1)
end

this will make a sprite move in a circle with a radius of 50

another example is that

go to x: ((x position) + (([sin v] of (direction)) * (5))) y: ((y position) + (([cos v] of (direction)) * (5)))

will do the same thing as

move (5) steps

greenphone122

move (i dont know abou sin) steps

ask [do u know sin??????] and wait

forever
say [idk about sin]
end

MrKingofScratch

One of the simplest and more common uses of the sine operator on scratch is to make animated titles!

If you look up an image of a sin wave on a graph, you'll notice two things:
1. it's a smooth curve
2. It repeats itself, and goes both up and down instead of just one direction

These properties are useful because they let use make titles that:
1. Animate smoothly
2. Animate back and forth

Here's an example project I made with this. You can look at the code and try to modify it to make your own title. This same method can also be used to make ocean waves, hoverboards, etc.

Note: the “sine x value” variable is related to the x position on a graph. Don't worry too much about this if you don't understand it, but know that it represents how far into the animation you are

Last edited by MrKingofScratch (April 1, 2024 03:15:41)

kinglert

MrKingofScratch wrote:
One of the simplest and more common uses of the sine operator on scratch is to make animated titles!

If you look up an image of a sin wave on a graph, you'll notice two things:
1. it's a smooth curve
2. It repeats itself, and goes both up and down instead of just one direction

These properties are useful because they let use make titles that:
1. Animate smoothly
2. Animate back and forth

Here's an example project I made with this. You can look at the code and try to modify it to make your own title. This same method can also be used to make ocean waves, hoverboards, etc.

Note: the “sine x value” variable is related to the x position on a graph. Don't worry too much about this if you don't understand it, but know that it represents how far into the animation you are

thx

Ahaan_06

Sin is quite useful for epic movements
90+(sin of(timer)*39) for directions

_4o4_

Sine is basically a function. Try going to https://www.desmos.com/calculator and typing there “sin(x)”. What this basically does is, that given an X position to sin, sin output Y position. You can see that if X=0, then Y=0 as well. That means that sin(0) = 0. But if you go to X=1, then the Y coordinate is ~0.8. So that means that sin(1)=0.8.

Sin always outputs a value from -1 to 1, and can take any value as input. Try making a script like this: set variable A to sin(variable B), and set variable B to a slider, with the range -1000 to 1000, it could get you an idea.

kinglert

Nkenx wrote:

when green flag clicked
say [hello] for (2) secs
wait (move () steps) secs
move (67) steps
sing [happy b day v] for (1000) showers
play sound [ v]
wright (bob) secs

*

kensson_weymouth

To use the sin and cos blocks go. to

([abs v] of ()::operators)

Then select sin or cos
It tells you how far along/ how high up an angle is on a circle
For example:

<([sin v] of (90)::operators) = [1]>

Last edited by kensson_weymouth (Nov. 19, 2025 19:39:10)

bRuHbRuHmEmEmAn

Nkenx wrote:

when green flag clicked
say [hello] for (2) secs
wait (move () steps) secs
move (67) steps
sing [happy b day v] for (1000) showers
play sound [ v]
wright (bob) secs

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