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27 sie 2009 · string prd(const double x, const int decDigits) { stringstream ss; ss << fixed; ss.precision(decDigits); // set # places after decimal ss << x; return ss.str(); } You can then output any double myDouble with n places after the decimal point with code such as this: std::cout << prd(myDouble,n);
1 lut 2009 · float f = 123.456; int integerPart = (int)f; int decimalPart = ((int)(f*N_DECIMAL_POINTS_PRECISION)%N_DECIMAL_POINTS_PRECISION); You would change how many decimal points you want by changing the N_DECIMAL_POINTS_PRECISION to suit your needs.
18 kwi 2012 · @Kap: try using some printf() debugging: Add printf("distan(%f, %f, %f, %f) == %f\n", globalLat1, globalLat2, globalLon1, globalLon2, distan); just after your calculation of distan and see if the output shows anything interesting.
2 cze 2017 · In C, there is a format specifier in C. To print 4 digits after dot, we can use 0.4f in printf (). Below is program to demonstrate the same. // C program to set precision in floating point numbers. // using format specifier. #include<stdio.h>. int main() . {. float num = 5.48958123;
28 lut 2024 · Program to calculate distance between two points. Last Updated : 28 Feb, 2024. You are given two coordinates (x1, y1) and (x2, y2) of a two-dimensional graph. Find the distance between them. Examples: Input : x1, y1 = (3, 4) x2, y2 = (7, 7) Output : 5. Input : x1, y1 = (3, 4)
21 maj 2024 · Rounding Floating Point Number To two Decimal Places in C and C++. Last Updated : 21 May, 2024. How to round off a floating point value to two places. For example, 5.567 should become 5.57 and 5.534 should become 5.53. First Method:- Using Float precision.
Example. float myFloatNum = 3.5; printf ("%f\n", myFloatNum); // Default will show 6 digits after the decimal point. printf ("%.1f\n", myFloatNum); // Only show 1 digit. printf ("%.2f\n", myFloatNum); // Only show 2 digits. printf ("%.4f", myFloatNum); // Only show 4 digits. Try it Yourself ».
