If Xia Duo didn't take the initiative to mention it, I'm afraid she may not be able to find it even if she is asked to observe it several times. After all, the microcosmic strings of the magic net have almost endless vibrations.

Only those with obvious characteristics have record and research value, and more are ignored.

But now, the discovery of a new shock state, and it is also related to this mysterious spell, does that mean that there are many useful things that have been ignored before?

Niya didn't think deeply about this issue for the time being, after all, she had given up research on the background fluctuation of the magic net.

However, she still recorded this idea in her heart, and if she had the opportunity in the future, she might be able to discover more interesting things through it.

As for now—

Niya selected a string of the magic net and tried to pluck it. The next moment, the source of the spell really changed.

At the same time, the specific solution of the fireball transformed by Xia Duo's adjustment of the equation just now spread outward, completely engulfing him and Niya.

Two strong magical auras flashed out from a sea of ​​flames, and the flames disappeared in the next moment, revealing Xia Duo and Niya who had inspired the protective magic of the robe.

It's just that Xia Duo has the ability to defend against spells, while Niya is just an ordinary person. The level of the sea of ​​fire just now was so high that it completely exceeded the protection limit of the two people's daily resident protection spells.

"Apricot"

If Xia Duo hadn't controlled the equation spell in time, I'm afraid the teleportation spell on the two of them would be triggered in the next moment.

Fortunately, it was just an evocation equation spell. If it was a spell in the plane domain, it might not even be able to teleport. It would be too embarrassing not to die in the hands of the enemy, but to be killed by your own spell.

Even now, Xia Duo looks the same as before, except that the aura around him is a little scattered, but Niya is a little embarrassed.

Not only was the aura scattered all over his body, but his eyebrows were all radiant, and his hair was also burnt. When he opened his mouth, he even spit out a burst of water vapor, and he coughed for a long time before he recovered.

"What just happened?"

It happened so suddenly, Niya only felt her eyes light up and down, and then she felt out of breath, coughing hard for a while, and then she recalled that she was operating that mysterious spell just now, and then—

"It's that spell!"

Nya glanced at the source of the spell that hadn't disappeared, then subconsciously stroked her hair and exclaimed, "Ah! My hair!"

Then, Niya summoned a water mirror, looking at her scorched hair and completely disappeared eyebrows in the mirror, Niya's face changed several times.

But in the end, he still recited this mysterious spell, covering his whole body with only a mist of water, his resentful eyes fixed on Xia Duo: "Did you do it on purpose?"

"No, no, absolutely not."

How could Xia Duo admit this? Do you still want to live, and he really didn't do it on purpose, I saw him shaking his head again and again, explaining:

"I didn't expect you to act like that. It's too late to stop it, but I was also at fault. I didn't describe the details clearly."

However, when he thought of Niya's eyebrowless appearance just now, he still laughed a little unnaturally, which made Nya even more sad.

Xia Duo also realized that the atmosphere was not right, so he quickly changed the subject, "Shall I introduce this equation spell to you?"

When the culprit was mentioned, Niya was indeed attracted attention and asked, "This is called equation magic? What is an equation?"

Xia Duo originally wanted to transliterate the word "equation" in Chinese, but thought that Nether language also has a word that means "equal" and the concept of equation.

Therefore, he simply added an Elvish suffix pointing to the meaning of "constant" and "equal" to the Netherian "equal", and then created a new word "equation" by omitting syllables.

After all, as the discoverer of this new spell type, he has the right to name it whatever he wants.

After clearly explaining the origin of the word equation, Niya seemed to be touched, as if thinking of something, but said nothing.

So Xia Duo continued to explain: "The equation spell is a summary of the laws of a certain field, or the realization, such as the one you just operated, I named it 'Evocation Equation Spell', by controlling the value of different variables , you can display different evocation spells in real time, theoretically you can exhaust all evocation spells you can think of."

What Xiaduo said later is somewhat similar to the concept of functions, but in fact all functions can be written in the form of equations, but equations are not necessarily functions.

In addition, the equation spell is not equivalent to the "equation" in mathematics. It does not perform calculations through numbers, but evolves in real time in reality. It is more like a man-made object, which is the realization of laws rather than conceptual meaning. knowledge.

Of course, this is mainly because the boundary between theory and application in the magical world is very blurred. If it is on Earth, even if such an equation is obtained, it cannot directly change reality from the equation itself.

Instead, we need to use various artificial objects, such as solar panels, which are the practical application of the photoelectric effect. We can't just write an equation to directly convert light into electricity.

Then, Xia Duo briefly introduced how he derived this evocation equation. Niya didn't speak for a long time after hearing this, and said after a long time:

"Does that mean that other spells also exist in a specific solution of a certain equation?"

"Without verification, I can't give an exact answer, but judging from the evocation equation, I'm afraid it is like this."

"Then if you master all the equations, wouldn't you also master all the spells?"

While talking, Niya thought of something again, no, she stared at Xia Duo blankly, and asked: "Do you think there is an equation above the equation that includes magic itself?"

"Equations on equations?"

Xia Duo could understand what Niya wanted to express, but he had never considered such a question. After all, in his opinion, the concept of magic was very broad.

Even if it's just a spell, it's unlikely.

It's like asking on the earth, is there an equation that can cover all the laws of physics?

Even the legendary Grand Unification Theory cannot do this, not to mention whether the Grand Unification Theory exists or not until Xia Duo crosses, it is still unknown.

Let alone find it.

Although the magic world is different from the earth universe, Xia Duo believes that a real world must not be so shallow that it can be summed up with a theorem and an equation.

Of course, Xia Duo also believes that there are rules above rules, but those are too far away from him.

He couldn't fully understand the world that he had access to so far, let alone the distant unknown.

However, Xia Duo did not completely deny Niya's conjecture, but encouraged: "You need to discover these by yourself."

For Arcanists, the unknown is not fear, but the best teacher and the strongest motivation for research.