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How to turn positive number to negative number vice versa?

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Musngi
307
Musngi  
How to turn positive number to negative number vice versa? I created indicator when EUR is down it means the USD is up, I computed the price in EUR/USD.
honest_knave
Moderator
2318
honest_knave  

Just use a minus sign.

    int myVal1 = 4;
    int myVal2 = -myVal1;
    int myVal3 = -myVal2;
    printf("myVal1=%+i myVal2=%+i myVal3=%+i",myVal1,myVal2,myVal3);

 

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