Pure Programmer
Project: Aligning Floating Point with printf()
Write a program that demonstrates floating point formatting using default (most compact), fixed point and exponential formats using printf() and/or sprintf() style output. Print using no precision, precision of 2 and a field width of 10 with precision 2. Your program should reproduce the output shown using the following variables:
- π = 3.141592653589793
- 𝑒 = 2.718281828459045
- avogadro = 6.0221412927e23
- electron_mass = 9.1093821545e-31
Output
$ node AligningFloatingPointWithPrintf.js
General sprintf
π: 3.141592653589793 3.1 | 3.1|
ℯ: 2.718281828459045 2.7 | 2.7|
Nₐ: 6.0221412927e+23 6e+23 | 6e+23|
mₑ: 9.1093821545e-31 9.1e-31 | 9.1e-31|
Fixed sprintf
π: 3.141592653589793 3.14 | 3.14|
ℯ: 2.718281828459045 2.72 | 2.72|
Nₐ: 6.0221412927e+23 6.0221412927e+23 |6.0221412927e+23|
mₑ: 9.1093821545e-31 0.00 | 0.00|
Scientific sprintf
π: 3.141592653589793e+0 3.14e+0 | 3.14e+0|
ℯ: 2.718281828459045e+0 2.72e+0 | 2.72e+0|
Nₐ: 6.0221412927e+23 6.02e+23 | 6.02e+23|
mₑ: 9.1093821545e-31 9.11e-31 | 9.11e-31|