float32 is a 32-bit floating-point type for lower precision, while float64 is a 64-bit type offering higher precision and range.
float32 is a 32-bit IEEE 754 floating-point number, while float64 is a 64-bit IEEE 754 floating-point number, meaning float64 offers greater precision and a larger range. Use float32 when memory efficiency or speed is critical and high precision is not required, and use float64 for general-purpose calculations where accuracy matters.
var small float32 = 3.14
var precise float64 = 3.141592653589793
float32 and float64 are both ways to store decimal numbers in Go, but they differ in how much detail they can hold. Think of float32 as a small notebook that holds fewer digits, while float64 is a large ledger that captures much more detail. You choose float32 to save space and float64 when you need exact results.