# function::fp_mul - Linux

## Overview

The `fp_mul`

command is a high-performance floating-point multiplier library designed for scientific computing and numerical analysis tasks. It provides efficient and accurate computation of floating-point multiplication operations.

## Syntax

**fp_mul** {**a** **b**}

**fp_mul -h|-?**|

**-V**

**a** and **b** are floating-point numbers.

## Options/Flags

**-h | -?**: Display help information about the command.**-V**: Print version information of the library.

## Examples

**Simple multiplication:**

```
fp_mul 2.5 3.2
```

Output:

```
8.0
```

**Complex computation:**

Execute `fp_mul`

with a large number of times to demonstrate its high-performance nature:

```
for ((i=0; i < 10000000; i++)); do fp_mul 3.1415 2.7182; done
```

## Common Issues

**Floating-point precision:**`fp_mul`

operates on IEEE 754 floating-point numbers, which have limited precision. For extremely large or small numbers, rounding errors may occur.**NaN and Infinity:**`fp_mul`

can return NaN (Not a Number) or Infinity in certain cases (e.g., dividing by zero or multiplying by Infinity).

## Integration

`fp_mul`

can be integrated into C and Fortran programs using the provided headers and libraries. It can be used as a drop-in replacement for standard floating-point multiplication operations to improve performance.

## Related Commands

`*`

: Standard floating-point multiplication operator in C and Fortran.`bc`

: Arbitrary precision calculator.`gmp`

: GNU multiple-precision arithmetic library.