Before this BBC podcast kicks off, I'd like to tell you about some others you might enjoy.

My name's Will Wilkin and I Commission Music Podcast for the BBC.

It's a really cool job, but every day we get to tell the incredible stories behind songs,

moments and movements, stories of struggle and success, rises and falls, the funny, the ridiculous.

And the BBC's position, at the heart of British music

means we can tell those stories like no one else.

We were, are and always will be right there at the centre of the narrative.

So whether you want an insightful take on music right now

or a nostalgic deep dive into some of the most famous and infamous moments in music,

check out the music podcasts on BBC Sounds.

Hello and welcome to more or less with me, Charlotte McDonald.

Tributes have been paid to the world-renowned Iranian mathematician Marion Mizakhani,

who has died of cancer in the United States. The 40-year-old was the first woman to win

the prestigious Fields Medal regarded as

the equivalent of the Nobel Prize for mathematics. In today's program, we're celebrating

Marian Mirz Akarni, one of the greatest mathematicians of the past century, who died recently.

She was known for her groundbreaking work on hyperbolic shapes and reman surfaces, as well as simple games we might play at home.

So the general problem is trying to understand the behaviour of a ball in a billiard table.

That's Mizakani herself giving a lecturer at Harvard University in the US.

Born and raised in Tehran, as a teenager, she competed in the International Mathematical Olympiad.

She won consecutive gold medals, the first female Iranian to take home a top prize,

and the first Iranian ever to receive a perfect score.

...