Formula: -<function> format yields 0 instead of expected value

[thomascharbonnel]

Description

When creating formulas such as -<function>, the result always becomes 0 rather than -1 * <function>.
-1 * <function> works but Excel properly supports -<function> too.

Steps to reproduce the issue:

1. Create a formula in Excel such as =-COS(0)
2. Calculate the cell using Excelize

Describe the results you received:

0

Describe the results you expected:

-1

Output of go version:

go version go1.18.3 linux/amd64

Excelize version or commit ID:

master

Environment details (OS, Microsoft Excel™ version, physical, etc.):

Running Excelize on Linux.
Excel v. 2108 on Windows.

[xuri]

Thanks for your feedback, this issue was caused by commit 0f7a0c8, and I have fixed it, please upgrade to the master branch code.

[thomascharbonnel]

Thank you for your help!