Math Is Fun Forum

randBool() function acts like an on/off switch returning a 0 or a 1.

(rand_0_1(12)) That syntax returns a random number.

I did make some progress to create a sin curve with noise:

Sin(Fc*5*rand_0_1(23))

Condition work like this:

cond(<name of object you want to apply condition> >= (greater then or equal too)3,<condition if true>,<condition if false>)

Put into a expression would be like this:

cond(sphere.kine.local.posy >= 3, cube.kine.local.posx, cube_two.kine.local.posz)

Explained what the expression means in English, if the condition of the sphere is great then or equal to 3 units on the X then then snap it to the cube X position if it's not greater then or 3 units on the X then snap it to cube_two Z position  

There is no Rnd() command in this programs expressions even in Maya there isn't, as far as I know ! There is ceiling and min and max which I still can't figure out, I've got some information on it but still can't understand.

Here is another way to write an expression:

Sin(Fc*5)+(rand_0_1(12))/64 > Tip computers are best at calculating even numbers not odd numbers (2,4,6,8,10 etc)

There are still some expressions syntax I can't figure out what they mean Then this program also has another graphical programming language which is a little easier, but you have to know what does what like "SettingData" and "GettingData"

Bobbym that conditional statement, worked.  Here is a picture of the graph of what that expression created. 

Expressions are much deeper that is just the tip Sarah

noise(this.kine.local.posx,(Fc*5),this.kine.local.posz)

That expression works as well for applying noise
this refers to "itself" kine means the kinematics.local is local position (can also be global) and posX means Position X or Position Z

If that expression works and Sin(Fc*5) works how can I apply noise to a Sine curve ?

I made some headway hopefully this opens the door to the other expressions in the thread and how to bring them all together.

Sin(Fc*5)
Sin for FrameCurrent multiply by 5.  Which is saying starting on the current frame multiply the Sin by 5 (the peaks).

Sarah thank you but it doesn't go into how to write out the expression.  I understand that expressions need to be written in brackets, and you can nest brackets within brackets but it's the order in relation to the program I use, that I'm having a hard time understanding.

This program can use Python as well, but you usually have to follow some program code guidelines no matter what language you are witting in, which can be difficult.  I can direct you to a online expression reference ? Where hopefully you would be able to understand the syntax for creating the expressions, from my understand and observing others expressions using this program they weren't that complex, but if you can understand it would help me to learn.

She probably was a good mother Don't worry bobbym she is watching you beyond the grave to make sure you don't get into trouble

A Target is what to apply the expression too. 
Sorry to hear that you've lost your mother, how old was she ?

If your grieving and would rather pass the problem to someone else.  I'll understand.  Although you are the only active one it appears

No Hopefully Bobbym comes up with answer soon