求助：编程报错invalid operands of types 'float' and 'int' to binary 'operator^'
本帖最后由 凯风自北来 于 2015-7-8 10:17 编辑之前编程的时候几个量都是整型的，后来为精确起见改成浮点型，但是就报错了，请大神帮忙看下问题在哪里
arduino IDE提示
_1.ino: In function 'void setup()':
_1:18: error: invalid operands of types 'float' and 'int' to binary 'operator^'
_1:20: error: invalid operands of types 'float' and 'int' to binary 'operator^'
invalid operands of types 'float' and 'int' to binary 'operator^'
#include <AccelStepper.h>
AccelStepper stepper1(1, 9, 8);
AccelStepper stepper2(1, 7, 6);
floatflowrate1=17;
floatdiameter1=8.24;
intpitch1=1;
float area1;
float velocity1;
floatflowrate2=17;
float diameter2=8.24;
intpitch2=1;
float area2;
float velocity2;
int pos1 = 3600;
int pos2 = 5678;
void setup()
{
area1=3.14*((diameter1/2)^2);
velocity1=(flowrate1/area1)*80/3;
area2=3.14*((diameter2/2)^2);
velocity2=(flowrate2/area2)*80/3;
stepper1.setMaxSpeed(velocity1);
stepper1.setAcceleration(1000);
stepper2.setMaxSpeed(velocity2);
stepper2.setAcceleration(1000);}
void loop()
{
if (stepper1.distanceToGo() == 0)
{
pos1 = -pos1;
stepper1.moveTo(pos1);
}
if (stepper2.distanceToGo() == 0)
{
pos2 = -pos2;
stepper2.moveTo(pos2);
}
stepper1.run();
stepper2.run();
}
int 跟 float不支持"^" 運算
換成下面方式試試:
#include <math.h>
...
area1=3.14*(pow((diameter1/2), 2)); alai2015 发表于 2015-7-8 13:02 static/image/common/back.gif
int 跟 float不支持"^" 運算
換成下面方式試試:
#include
多谢，问题已解决
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