expression 11*x^2 +x +15 Range = -2.5...2.5 Step = 0.1 This is what i have so far, const int rs = 12, en = 11, d4 = 5,

[answerhappygod]

expression

11*x^2 +x +15
Range = -2.5...2.5
Step = 0.1
This is what i have so far,
const int rs = 12, en = 11, d4 = 5, d5 = 4, d6 = 3, d7 =
2;
LiquidCrystal lcd(rs, en, d4, d5, d6, d7);
void setup() {

lcd.begin(16, 2);
}
void loop() {
int j = 0;
for(int i = -2.5; i <= 2.5; i+=0.1)
{
int m;
m = functionn(xarray);
lcd.print(m);
delay(400);
}
int functionn(int x){
int result;
result = (11)*(pow(x,2)) + x + 1;
return result;
}
I get an error cause i didnt call xarray function but idk