This is my code: #include "SR04.h" #include "math.h" #define TRIG_PIN 5 #define ECHO_PIN 4 SR04 sr04 = SR04(ECHO_PIN,TRIG_PIN); long a; int hMax = 130; float seno1 = sin(18.6495); float seno2 = sin(71.3505); float vol1; float vol2; float vol1Max = 41846.112; float vol2Max = 254469.6; float volT…

vol2 = (3.1416(30*30))(a-40); //Here is the problem // ~^~ ~^~ // No operator here :roll_eyes:

ERROR! expression cannot be used as a function

chrisknightley October 1, 2021, 6:50pm 4

Topic		Replies	Views
Expression cannot be used as a function Programming	4	5445	May 5, 2021
calculation problem, ''expression cannot be used as a function'' Programming	8	19675	May 5, 2021
Expression cannot be used as a function, please help ! Programming	11	9224	May 5, 2021
'expression' Cannot be used as a function Programming	6	7862	May 5, 2021
' ' cannot be used as a function Programming	4	7064	May 5, 2021